A 5kg block of iron is heated to 800degree C.it is placed in a tub containing 2litre of water at 15degree C.Assuming all the water is brought to the boil rapidly calculate the mass of water which boile off.

Answers

Answer 1
Final answer:

To calculate the mass of water that evaporates, we apply energy conservation between the heated iron block and the water. Heat transfers from the iron to the water until the water boils and some evaporates. Specific heat capacities and latent heat values are needed for a numerical solution.

Explanation:

To calculate the mass of water that boiled off when a 5kg block of iron is heated to 800℃ and placed in a tub containing 2 liters of water at 15℃, we apply the concept of conservation of energy. The heat lost by the iron block will be equal to the heat gained by the water, which will result in water reaching its boiling point and some of it evaporating. The specific heat capacity of water, the heat of vaporization of water, and the specific heat capacity of iron are crucial to these calculations.

We can denote the mass of water that evaporates as m, and calculate the heat required to raise the temperature of the remaining water from 15℃ to 100℃ and convert the m grams of water at 100℃ into steam. However, we need additional data such as the specific heat capacities and the latent heat of vaporization for water to provide a concrete answer. Without the specific values, we can only describe the methodology.


Related Questions

The density of water is 1.00 g/cm3. What is its density in kg/m3?

Answers

1 g = 1 ÷ 1000 kg
= 0.001 kg

1 cm³ = 1 ÷ 100 ÷ 100 ÷ 100 m³
= 0.000001 m³

1 g/cm³ = 1 g / 1 cm³
= 0.001 kg / 0.000001 m³
= 1000 kg/m³

The density is 1000 kg/m³.

The density of water is 1.00 g/cm3, then in kilograms per centimeter cube unit, its density would be 1000 kg/m³.

What is density?

It can be defined as the mass of any object or body per unit volume of the particular object or body. Generally, it is expressed as in gram per cm³ or kilogram per meter³.

As given in the problem we have to calculate the density of water in kilogram per centimeter cube,

1 cm³ = 1×10⁻⁶ m³

1 gram = 1×10⁻³ kg

The density of the water= mass of the water /volume of the water

                                 =1.00 g/cm3

                                 =1×10⁻³ kg /1×10⁻³ kg

                                 =1000 kg/m³

Thus, if the density of water is 1.00 g/cm3, then in kilograms per centimeter cube unit its density would be 1000 kg/m³.

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The flight from kampala to singapore takes 7.0 hours. what is the plane's angular velocity relative to the earth's surface? give your answer in ∘/h.

Answers

Final answer:

The Earth rotates at an angular velocity of 15 degrees per hour. Without specific flight path distances, we refer to Earth's rotation speed as a base reference for understanding angular velocity in a general sense.

Explanation:

The flight from Kampala to Singapore takes 7.0 hours. To calculate the plane's angular velocity relative to the Earth's surface, we need to understand that completing a flight between two points on Earth's surface involves moving over a certain segment of Earth's rotation. Since the Earth completes one full rotation (360 degrees) in 24 hours, we can calculate the angular velocity (in degrees per hour) by simply dividing the total degrees by the total hours.

Angular velocity = Total rotation / Time = 360 degrees / 24 hours = 15 degrees per hour.

However, this is the angular velocity of the Earth itself. A plane's angular velocity relative to Earth would depend on the distance traveled. But without specific details on the distance covered, we can only refer to the Earth's own rotation speed as a base reference, which is 15 degrees per hour. For a specific flight, beyond this basic understanding, actual calculation would require details about the exact flight path length over the Earth's surface.

A cylinder has a length of 3.23 cm, a diameter of 1.75 cm, and a mass of 65.3 grams. What is the density of the cylinder? Based on its density, of what kind of material might it be made? Material is likely to be: ______________________________ (Show your work.)

Answers

Density is a value for mass, such as kg, divided by a value for volume, such as m3. Density is a physical property of a substance that represents the mass of that substance per unit volume. We calculate density as follows:

density = mass / volume
density = 65.3 g / π(1.75/2 cm)^2 ( 3.23 cm )
density = 8.41 g/cm^3
Final answer:

To find the density of a cylinder, its volume is first determined using the formula V = πr²h. After correcting the radius and height according to the question, the density is calculated as mass divided by volume, approximately 6.65 g/cm³. Compared to standard material densities, the cylinder may be made of a type of stainless steel or a similar metal alloy.

Explanation:

To calculate the density of the cylinder, we first need to find its volume using the formula V = πr²h. Given that the length (height) is 3.23 cm and the diameter is 1.75 cm, the radius (r) would be half of the diameter, which is 0.875 cm. However, there seems to be a typo or mistake in the provided sample work as it uses a radius of 0.750 cm and a height of 5.25 cm, which do not match the question's parameters. Assuming the correct measurements, we would use:

V = π × (0.875 cm)² × 3.23 cm = 9.818 cm³

Now, to find the density, we divide the mass by the volume:

Density = Mass / Volume = 65.3 g / 9.818 cm³ = 6.65 g/cm³

Based on common material densities, this cylinder could potentially be made of stainless steel which typically has a density around 8 g/cm³; however, since our calculated density is slightly less, it could be a stainless steel alloy or a similar metal with a slightly lower density.

A car changes velocity at a constant acceleration of 2.5m/s to reach 43.7m/s in 2.7 s how fast was the car moving when it began to accelerate?

Answers

The formula we can use in this case is:

v = v0 + a t

where v is final velocity, v0 is initial velocity, a is acceleration and t is time

So finding for v0:

v0 = v – a t

v0 = 43.7 – (2.5) 2.7

v0 =  36.95 m/s

Final answer:

The car was moving at a speed of 36.95 m/s when it began to accelerate.

Explanation:

To find the initial velocity of the car when it began to accelerate, we can use the equation for average velocity:

V = (U + V)/2

Where:

V is the final velocity (43.7 m/s)U is the initial velocity (unknown)

Given that the car changes velocity at a constant acceleration, we can use the kinematic equation:

V = U + at

Where:

a is the acceleration (2.5 m/s²)t is the time (2.7 seconds)

Substituting the known values, we have:

43.7 m/s = U + (2.5 m/s²)(2.7 s)

Simplifying the equation, we find:

U = 43.7 m/s - (2.5 m/s²)(2.7 s)

U = 43.7 m/s - 6.75 m/s

U = 36.95 m/s

Therefore, the car was moving at a speed of 36.95 m/s when it began to accelerate.

How much heat is absorbed by a 29g iron skillet when its temperature rises from 9oC to 105oC?

Answers

We have:

Mass (m) of the iron skillet = 29 grams
Difference in temperature (Δt) = 105 - 9 = 96°C
Heat capacity of iron = 0.449 J/g °C

The energy (Q) is given by:

Q = m × Δt × specific heat
Q = 29 grams × 96 °C × 0.449 J/g°C
Q = 1250.016 Joules

Choose the 200 kg refrigerator. Set the applied force to 400 N (to the right). Be sure friction is turned off.What is the net force acting on the refrigerator?

Answers

So, there should be two forces acting on the refrigerator: the applied force and the friction force.

The question mentioned that the friction force was set to zero, so the only effective force now would be the applied force.

We have an applied force of 400 N to the right, this means that:
The magnitude of the net force is 400, directed to the right.

The net force acting on the refrigerator is 400 N to the right

[tex]\texttt{ }[/tex]

Further explanation

Newton's second law of motion states that the resultant force applied to an object is directly proportional to the mass and acceleration of the object.

[tex]\boxed {F = ma }[/tex]

F = Force ( Newton )

m = Object's Mass ( kg )

a = Acceleration ( m )

Let us now tackle the problem !

[tex]\texttt{ }[/tex]

Given:

mass of refrigerator = m = 200 kg

magnitude of applied force = F = 400 N

magnitude of frictional force = f = 0 N

Asked:

net force = ΣF = ?

Solution:

We will use Newton's Law of Motion to solve this problem as follows:

[tex]\Sigma F = F - f[/tex]

[tex]\Sigma F = 400 - 0[/tex]

[tex]\boxed{\Sigma F = 400 \texttt{ N} }[/tex]

[tex]\texttt{ }[/tex]

We could also calculate the acceleration of the refrigerator as follows:

[tex]\Sigma F = ma[/tex]

[tex]a = \Sigma F \div m[/tex]

[tex]a = 400 \div 200[/tex]

[tex]\boxed{a = 2 \texttt{ m/s}^2 }[/tex]

[tex]\texttt{ }[/tex]

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[tex]\texttt{ }[/tex]

Answer details

Grade: High School

Subject: Physics

Chapter: Dynamics

If a glass is knocked off of a table that is 1.4m tall, how long does it take for the glass to hit the ground?

Answers

h = 1.4 m, the height the glass falls.
u = 0, initial vertical velocity, because the glass is knocked off a table.

Assume g = 9.8 m/s², and ignore air resistance.
Let t = the time for the glass to hit the ground.
Then
(1/2)*(9.8 m/s²)*(t s)² = (1.4 m)
4.9t² = 1.4
t² = 0.2857
t = 0.5345 s

Answer: 0.54 s  (nearest hundredth)

Two planes leave wichita at noon. one plane flies east 30 mi/h faster than the other plane, which is flying west. at what time will they be 1200 mi apart?

Answers

The time they will be 1200 mi apart is [tex]\(12:00 PM + \frac{1200}{2S + 30}\)[/tex] hours.


Let's denote the speed of the slower plane as [tex]\(S\) (in mi/h)[/tex]. The faster plane, which is flying east, will have a speed of [tex]\(S + 30\) mi/h[/tex].

The relative speed between the two planes is the sum of their individual speeds:

[tex]\[ \text{Relative speed} = S + (S + 30) = 2S + 30 \, \text{mi/h} \][/tex]

Now, we know that the planes leave at noon, and we want to find the time it takes for them to be 1200 mi apart. Let t be the time in hours.

The distance traveled by the slower plane in t hours is [tex]\(S \cdot t\)[/tex], and the distance traveled by the faster plane is [tex]\((S + 30) \cdot t\)[/tex]. The sum of these distances is the total distance between the planes:

[tex]\[ S \cdot t + (S + 30) \cdot t = 1200 \][/tex]

Combine like terms:

[tex]\[ 2S \cdot t + 30 \cdot t = 1200 \][/tex]

Factor out t:

[tex]\[ t(2S + 30) = 1200 \][/tex]

Now, solve for t:

[tex]\[ t = \frac{1200}{2S + 30} \][/tex]

We know that when t is the time, it should be in hours, and we want to find at what time they will be 1200 mi apart. If they leave at noon, the time will be [tex]\(12:00 PM\) + \(t\) hours[/tex].

So, the time they will be 1200 mi apart is [tex]\(12:00 PM + \frac{1200}{2S + 30}\)[/tex] hours.

A 590-kg rocket is at rest on the launch pad. what upward thrust force is needed to accelerate the rocket uniformly to an upward speed of 28 m/s in 3.3 s?

Answers

Final answer:

To find the upward thrust force needed to accelerate the rocket, we use Newton's second law of motion. The upward thrust force needed is approximately 4989.2 N.

Explanation:

To find the upward thrust force needed to accelerate the rocket, we can use Newton's second law of motion, which states that force is equal to mass times acceleration. In this case, the mass of the rocket is 590 kg and the acceleration is the change in velocity divided by the time taken.

Using the formula acceleration = (final velocity - initial velocity) / time, we can calculate the acceleration:

acceleration = (28 m/s - 0 m/s) / 3.3 s =  8.48 m/s²

Now that we have the acceleration, we can calculate the upward thrust force:

force = mass x acceleration = 590 kg x 8.48 m/s² = 4989.2 N

Therefore, the upward thrust force needed to accelerate the rocket uniformly to an upward speed of 28 m/s in 3.3 s is approximately 4989.2 N.

To accelerate the 590-kg rocket uniformly to an upward speed of 28 m/s in 3.3 s, a thrust force of approximately 5010.2 N is required, calculated using Newton's second law.

To determine the upward thrust force needed to accelerate the rocket uniformly, we can use Newton's second law, which states that the force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma).

First, calculate the acceleration (a) of the rocket using the kinematic equation:

v = u + at

where:

v is the final velocity (28 m/s),

u is the initial velocity (0 m/s, as the rocket is at rest),

a is the acceleration, and

t is the time (3.3 s).

Rearrange the equation to solve for acceleration:

a = (v - u) / t

Substitute the values:

a = (28 m/s - 0) / 3.3 s ≈ 8.48 m/s^2

Now, use Newton's second law to find the force (F):

F = ma

F = 590 kg × 8.48 m/s^2 ≈ 5010.2 N

A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a uniform speed of 13 m/s, skates by with the puck. After 1.5 s, the first player makes up his mind to chase his opponent. (a) If he accelerates uniformly at 4.0 m/s2, how long does it take him to catch his opponent? (Assume the player with the puck remains in motion at constant speed.) (b) How far as he traveled

Answers

Let us say that:

1 = 1st player notation

2 = 2nd player notation (the opponent)

 

a. First let us establish the distance travelled by the 2nd player:

d2 = 13 m/s * (t + 1.5)

d2 = 13 t + 19.5

 

Then the distance of the 1st player:

d1 = v0 t + 0.5 a t^2         (v0 initial velocity = 0 since he started from rest)

d1 = 0.5 * 4 m/s^2 * t^2

d1 = 2 t^2

 

The two distances must be equal, d1 = d2:

2 t^2 = 13 t + 19.5

t^2 – 6.5 t = 9.75

Completing the square:

(t – 3.25)^2 = 9.75 + (- 3.25)^2

t – 3.25 = ±4.5

t = -1.25, 7.75

Since time cannot be negative, therefore:

t = 7.75 seconds

 

So he catches his opponent after 7.75 seconds.

 

b. Using the equation:

d1 = 2 t^2

d1 = 2 * (7.75)^2

d1 = 120.125 m

 

So he travelled about 120.125 meters when he catches up to his opponent.

It takes 3.25 seconds for the first player to catch the opponent. The first player has traveled 21.125 meters when they catch the opponent.

Given:

Opponent's speed (v₁) = 13 m/s

Acceleration of the first player (a) = 4.0 m/s²

Time (t) = 1.5 s

(a) We can use the following equation:

v = u + at

13  = 0 + 4.0 × t

t = 13 / 4.0

t = 3.25 s

Therefore, it takes 3.25 seconds for the first player to catch the opponent.

(b) we can use the equation:

s = ut + (1/2)at²

s = 0 × 3.25 + (1/2) × 4.0 × (3.25 )²

s = 0 + (1/2) × 4.0 × 10.5625

s = (1/2) × 4.0 × 10.5625

s = 21.125 m

Therefore, the first player has traveled 21.125 meters when they catch the opponent.

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Temperature, Thermal Energy and Heat is what my questions are about, in picture

Answers

Thermal energy is a type of heat but their is two names for it heat energy and thermal energy for example ur oven is heat energy/thermal energy

henry was given this cool toy for his birthday;he can use it to tell how fast someone is going at that moment in time. the toy must calculate the persons....
average velocity
average speed
acceleration
instantaneous speed

Answers

Instantaneous Speed because its happening a that moment in time or instantly. Average speed is wrong because that's the total amount of time you went and the averages of the different speeds you went. So its the last one! 

Answer:

Instantaneous speed

Explanation:

It is given that, Henry was given this cool toy for his birthday. He can use it to tell how fast someone is going at that moment in time. The toy must calculate the person's instantaneous speed.

Instantaneous speed of an object is defined as the speed at a particular instant. Mathematically, it is given by :

[tex]v= \lim_{\Delta t \to 0}(\dfrac{\Delta x}{\Delta t})[/tex]

Instantaneous speed is a scalar quantity. It does not involve any direction.

So, Henry must calculate the person's instantaneous speed. Hence, the correct option is (d).

What is the primary reason that we launch x-ray telescopes into space rather than building them on the ground?

Answers

The primary reason is that on earth, x-rays are partly blocked by the atmosphere because x rays do not penetrate into the atmosphere of earth, so that's why there is a need to bring that telescope to space.
 And also on ground there is a blurring on telescope that is caused by atmospheric turbulence and on space it reduces that effect. The wavelength regions of X-rays and ultraviolet rays cannot be studied with telescopes that are on the ground.

Answer:

X-Rays from space do not reach the ground.

Explanation:

A rocket ship travels 14,000 miles per hour. What is the rocket ship's velocity in m/s in correct scientific notation? (1 km = 0.62 mi) A. 6.3 × 10^3 m/s B. 0.627 × 10^3 m/s C. 630 × 10^6 m/s D. 6.3 × 10^5 m/s

Answers

Note that
1 km = 0.62 mi
Therefore
0.62 mi = 10³ m
1 mi = 1.6129 x 10³ m

Also,
 1 h = 3600 s

The given speed is
[tex](14,000 \, \frac{mi}{h} )*( \frac{1.6129 \times 10^{3} \, m}{mi} )*( \frac{h}{3600 \, s} ) = 6.27 \times 10^{3} \, \frac{m}{s} \approx 6.3 \times 10^{3} \, \frac{m}{s} [/tex]

Answer:  A. 6.3 x 10³ m/s

This map shows the Mid-Atlantic Ridge, which spreads approximately 2.5 cm/year. What is the rate of the spread in m/month?

A) .002
B) .3
C) 216
D) 777600

Answers

  2.5 cm                 1 meter                  1 Year
_______       x     ________      x     ________        = 0.002 m/month
  Year                     100 cm                12 mo.s

The answer is A 00.2

Ismarelda has enough money to purchase 27 bottles of root beer for her party at her home she is expecting 4 guests.
What is the largest numbers of bottles of root beer she needs to purchase if she want every one ( including herself ) to have equal number of root beers

Answers

25. That way, (since there are 5 people including herself) everyone will get 5 root beers.

A bird can fly 25 km/h. How long does it take to fly 3.5km?

Answers

The equation of motion that we can use in this case is:

t = d / v

where t is time, d is distance, v is velocity

 

Therefore calculating for t:

t = 3.5 km / (25 km / h)

t = 0.14 h = 8.4 minutes

Final answer:

It takes approximately 8.4 minutes for a bird flying at 25 km/h to cover a distance of 3.5 km.

Explanation:

To determine how long it takes for a bird to fly 3.5 km at a speed of 25 km/h, we can use the formula for time, which is distance divided by speed. The calculation is as follows:

Time = Distance / Speed

Time = 3.5 km / 25 km/h = 0.14 h

To convert hours to minutes, multiply by 60:

Time = 0.14 h × 60 minutes/h = 8.4 minutes

Thus, it will take the bird approximately 8.4 minutes to fly 3.5km.

The greater the mass of an object, the greater its force due to gravity

Answers

True, the greater the mass of an object, the greater its force due to gravity.

What is force due to gravity?Force due to gravity is gravitational pull on object due to its position on earth's surface.

The force due to gravity on object's is calculated by applying Newton's second law of motion as follows;

F = mg

where;

m is the mass of the objectg is acceleration due to gravity

From the formula given above we can conclude that, the greater the mass of an object, the greater its force due to gravity.

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Final answer:

The statement addresses Isaac Newton's law of gravitation which suggests that the greater the mass of an object, the greater its force due to gravity. Gravitational attraction is a universal property of mass. Mass is constant while weight varies with the gravitational field strength.

Explanation:

The statement in question - 'The greater the mass of an object, the greater its force due to gravity' - is a fundamental principle in Physics, specifically in the study of gravity. Gravity is essentially a 'built-in' property of mass, meaning all masses in the universe interact via the force of gravitational attraction. The British physicist Sir Isaac Newton concluded that the gravitational attraction between two bodies is proportional to their masses and inversely proportional to the square of the distance between them. This is illustrated in Newton's law of gravitation, formulated as Fgravity = G × (M1 × M2) / R².

It's important to note also that the weight of an object, which is the force of gravity acting on it, varies with the strength of the gravitational field. Mass, however, is a constant property of an object and does not change regardless of the gravity acting on it. Mass is a measure of the amount of matter in an object, whereas weight is the gravitational pull acting on that matter.

Understanding these principles allows us calculate the masses of astronomical objects and understand a range of natural phenomena, from the motion of a falling apple to the orbits of planets.

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A 3-kg block is observed to accelerate at a rate twice that of a 6-kg block. is the net force acting on the 3-kg block twice as large as that acting on the 6-kg block? explain.

Answers

The force acting on a body is directly proportional to both mass and acceleration. Hence, the an increase in acceleration with a smaller mass does not make an increase  in force than that act on a larger mass with less acceleration. Hence, the net force will be the same for both masses.

What is force?

Force is an external agent acting on a body to deform it or to change its state of motion or rest.  Force is a vector quantity thus, it is characterized by a magnitude and direction.

The force according to second law of motion is the product of mass and acceleration of the body. Hence, an increase in mass or acceleration or both  results in an increase in force.

Here, the force F1 is acting on the mass 3 Kg with an acceleration of 2a

and force F2 is acting on 6 Kg with an acceleration a.

Then F1  = 3 × 2 a = 6a

F2 = 6 × a = 6a.

Thus, net force of both are equal.

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You throw a beanbag in the air and catch it 2.2s later at the same place you threw it. How high did it go? What was its initial velocity?

Answers

The round trip took the beanbag 2.2 s which means that moving up and down will take it only 1.1s, respectively.

a. The distance covered by the beanbag is calculated through the equation,
                d = 0.5gt²
where d is distance, g is the acceleration due to gravity and t is time. Substituting the known values,
                d = 0.5(9.8)(1.1²) = 5.929 m

b. The initial velocity is calculated through the equation,
               v = gt
Substituting the known values,
               v = (9.8 m/s²)(1.1 s)
                 v = 10.78 m/s
Final answer:

The beanbag was thrown in a motion with an initial velocity of 10.78 m/s and reached a peak height of 5.929m.

Explanation:

The height and initial velocity of a thrown object can be calculated using kinematics, a branch of physics that describes motion of objects. Since the beanbag is thrown up and comes back to the same spot, the total time of its flight (2.2s) is split between the time going up and the time coming back down.

We can simplify calculations by assuming that the time for the journey upwards equals the time for the journey downwards, i.e., 1.1s each.

The highest point is reached when the velocity is zero. We can use the formula v= u + at to find the initial velocity (u), where v is the final velocity, a is acceleration due to gravity (-9.8m/s² due to the upward direction), and t is the time (1.1s). For the highest point, we can use the formula h = ut + 0.5at².

Calculating this, we find the initial velocity u = -9.8 × 1.1 = -10.78 m/s (it's negative because we took upward direction as negative). To calculate the highest point or maximum height, we find h = -10.78 × 1.1 + 0.5 ×  -9.8 × (1.1)² = -5.929 m (this is also negative due to upward direction). Hence, the beanbag was thrown up with an initial velocity of 10.78 m/s and reached a maximum height of 5.929 m.

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hich of these statements explains the relationship among elements, compounds, and mixtures?

Elements are made of compounds and mixtures.

Both compounds and mixtures are made up of elements.

Mixtures are made of elements, and elements are made of compounds.

Compounds are made of mixtures, and mixtures are made of elements.

Answers

The second choice ... starts with the word "both" ... is the correct statement.

A car starts from rest and after 5 seconds it is moving at 35 m/s. what is the car's average acceleration?

Answers

Acceleration =velocity /time
=35/5
7

Which action occurs during a nuclear change?

A.No energy is involved in the reaction.

B.The nucleus disappears.

C.Matter changes from one state to another.

D.Elements are created that differ from the reactants.

Answers

the answer is d bro f  you mean

On your first attempt you leave the surface of the earth at v = 5534 m/s. how far from the center of the earth will you get?

Answers

Final answer:

The speed mentioned is approximately half the escape velocity from Earth and is not sufficient to escape Earth's gravitational field. The object will ascend to a maximum altitude before falling back down. A specific calculation would require further application of physics principles.

Explanation:

The question is related to the concept of escape velocity in physics, which is the speed needed to break free from a planet's gravitational pull without further propulsion. The escape velocity from the surface of the Earth is approximately 11 km/s. At a speed of 5534 m/s, which is approximately 5.5 km/s (half the escape velocity), the object will not have enough kinetic energy to completely escape Earth's gravity and hence will reach a maximum altitude before falling back to Earth. To calculate precisely how far from the center of the Earth you would get with the initial speed of 5534 m/s, you would need to use the equations for gravitational potential energy and kinetic energy, considering how much kinetic energy converts into potential energy as the object ascends against Earth's gravity.

The __________ houses the nucleus and other cell parts.
A.
neural receptor
B.
myelin sheath
C.
cell body
D.
axon terminal

Answers

C.  cell body encapsulate the nucleus and the other parts of a cell

The part of the neuron that houses the nucleus and other cell parts is the cell body that is in Option c, as the cell body, also known as the soma, is a central part of a eukaryotic cell.

What is the cell body?

The cell body includes the nucleus and other organelles like the mitochondria, endoplasmic reticulum, Golgi apparatus, and cytoplasm. The cell body is the main site for the metabolic and biochemical processes of the cell, and it is responsible for maintaining the integrity of the cell and regulating its activities. In the case of neurons, the cell body also contains the genetic information of the neuron in the form of DNA, which is used to synthesize the proteins and other molecules needed for the growth, repair, and maintenance of the neuron.

Hence, the part of the neuron that houses the nucleus and other cell parts is the cell body that is in Option c.

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in a historical movie, two knights on horseback start from rest at 88.0 m spartans ride directly toward each other to do battle. Sir George’s acceleration has a magnitude of 0.300 m/s^2, while Sir Alfred’s has a magnitude of 0.200 m/s^2. Relative to Sir George’s starting point, where do the knights collide?

Answers

The distance formula:d = v i · t + a · t² / 2Sir G.: ( v i = 0 )
d G = 0 + 0.3 · t² / 2Sir A. : d A = 0 + 0.2 t² / 288 m = 0.3 t² / 2   + 0.2 t² / 2    / · 2 ( multiple both sides by 2 )176 = 0.3 t² + 0.2 t²176 = 0.5 t²t² = 176 : 0.5t² = 352t = √352t = 18.76 sd G. = 0.3 · 18.76² / 2 = 0.3 · 352 / 2 = 52.8 mAnswer: The knights collide at 52.8 m relative to Sir George`s starting point.


Explain the difference between si base units and derived units. give an example of each

Answers

Base SI unit is the unit that used for simple quantity like time=second and length= meter. They only have one unit.
Derived unit is more complex because you multiply or divide at least two base SI, making it have more than 1 unit. The example could be velocity which was time/length = m/s

Final answer:

SI base units are the seven fundamental units in the SI system, such as kilograms for mass; derived units, such as grams per milliliter for density, are constructed by combining base units. Derived units are essential for expressing a wide range of physical quantities, demonstrating the SI system's adaptability.

Explanation:

The difference between SI base units and derived units lies in their definitions and applications. SI base units are the seven fundamental units of measurement in the International System of Units (SI) that are defined by specific physical phenomena and are independent of each other. These include the kilogram (kg) for mass and the meter (m) for length, among others. On the other hand, derived units are units that are constructed by combining the base units according to algebraic relationships. Examples of derived units include grams per milliliter (g/mL) for density and joules (J) for energy, which are obtained by combining base units in multiplicative ways.

Derived units can express a wide variety of physical quantities such as area, volume, density, and energy, showcasing the versatility of the SI system. Combining prefixes with base units can also create new units of larger or smaller sizes, enhancing the adaptability of the system to cover a broad range of measurements from the microscopic to the astronomical scale.

which of the following descriptions could apply to an accelerating car

Answers

There are many descriptions that can describe an accelerating vehicle, some include fast, quickly, Speedster, amount others. Cars accelerate fast for many reasons including but not limited to racing, running from the police, and racing to the scene of a crime.

How do constellations differ from other groupings of stars such as galaxies?

Answers

I think a constellation is an area of sky that contains up a picture, object, animal, ect. - a galaxy is a grouping of several million to billion stars, gas and dust, that is gravitationally bound. 

The tension t at each end of the chain has magnitude 25 n. what is the mass of the chain? (use g = 9.8 m/s2 for the acceleration due to gravity. give your answer correct to at least two decimal places.)

Answers

The mass of the chain in two decimal places is 2.55 kg.

What is the mass of the chain?

The tension at the end of the chain is due to the weight of the weight supported by the chain.

The mass of the chain is calculated by applying Newton's second law of motion as follows;

W = mg

where;

m is the mass of the chaing is acceleration due to gravity

m = W / g

The mass of the chain is calculated as;

m = ( 25 N ) / ( 9.8 m/s² )

m = 2.55 kg

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Final answer:

The mass of the chain can be calculated using the formula Mass = tension / gravity. Given the values for tension and gravity, the mass of the chain is approximately 2.55 kg.

Explanation:

This is a problem related to the physics concept of force, mass, and acceleration due to gravity. Since we know that the tension in the chain isn't affected by the chain's length, we can assume that the tension is evenly distributed along the chain, with 25 N at each end.

The tension in the chain is equal to the weight of the chain. Therefore, we can use the formula for calculating the weight, which is Weight = mass x gravity. Since we know that the weight is equal to the tension, we can solve the formula for mass, which gives us Mass = tension / gravity. Substituting the given values, we have: Mass = 25 N / 9.8 m/s² = 2.55 kg.

Therefore, the mass of the chain is approximately 2.55 kg.

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