Which of the following types of stars is most likely to end up as a red supergiant?
A
B
C
D

The spaceship is either not moving and is in its launch pad here on earth and the water is behaving as it would anywhere else on our planet

or

the spaceship is in outer space somewhere and it has fired up its thrusters and it has created it's own gravitational Force because it is accelerating

or

the spaceship is trying to land on another planet and is slowly coming to the surface of the planet

or

the spaceship is taking off from a planet and the gravitation force of the planet is still in effect.

Answer:

Based on the principle of equivalence, the motion and location of the spaceship are unknown.

The ship may be accelerating in space, where the floor rises up to the water.

The spaceship may be stationary on Earth, where gravity causes the water to fall to the floor.

Explanation:

Answer:

4 Ohms

Explanation:

The challenging part in this circuit is the bridged setup (diamond-shaped arrangement made of the 4 Ohm resistors). In general, this would first need to be transformed using the Wye-Delta transform to be solved, but in this case we can make a valid simplification: since the diamond arrangement is completely symmetrical, the voltage at the top and the bottom tip of the "diamond" will be identical and no current flows through the 4 Ohm bridge, hence, this resistor can be removed without changing the resulting resistance. After this, it is easy to see that the equivalent resistance of the modified "diamond" is just 4 Ohms.

The remaining top parallel branch of the circuit will be 8 Ohms, and the bottom parallel branch is nominally 8 Ohms. The resulting resistance therefore is 4 Ohms.

(The answer is not 2 Ohms!)

Nitrogen is a crucially important component for all life. It is an important part of many cells and processes such as amino acids, proteins and even our DNA. It is also needed to make chlorophyll in plants, which is used in photosynthesis to make their food.

Answer:

Its B

Explanation:

It converts nitrogen into a form that humans can obtain by eating other organisms.

Just finished this it is B. Centrifugal force

Answer:

B

Explanation:

Answer:

[tex]64.8^{\circ}C[/tex]

Explanation:

The efficiency of a reversible heat engine is given by:

[tex]\eta = 1 -\frac{T_C}{T_H}[/tex]

where

Tc is the cold temperature (outlet temperature)

Th is the hot temperature (temperature of the source)

In this problem, we know:

[tex]\eta = 63\% = 0.63[/tex]

[tex]T_H = 640^{\circ}C=913 K[/tex]

So, we can calculate the outlet temperature by re-arranging the formula:

[tex]T_C = T_H ( 1 -\eta)=(913 K)(1- 0.63)=337.8 K=64.8^{\circ}C[/tex]

Given that:

Ball dropped from a bridge at the rate of 3 seconds

Determine the height of fall (S) = ?

      As we know that, S = ut + 1/2 ×a.t²

                          u =initial velocity = 0

                          a= g =9.81 m/s  (since free fall)

                            S = 0+ 1/2 × 9.81 × 3²

                          S = 44.145 m

44.145 m far is the bridge from water

My answer choice would be A. Cypress Tree

Answer: A :)

Explanation:

Ap*x

Answer:

16.935 N

Explanation:

In order to make the box start moving, the level force applied on the box (F) must be greater than the force of static friction that keeps the box at rest, which is equal to

[tex]F_f = \mu_s (mg)[/tex]

where

[tex]\mu_s = 0.5645[/tex] is the coefficient of static friction

(mg) = 30 N is the weight of the box

Therefore, the condition for F must be:

[tex]F \geq F_f\\F \geq \mu_k (mg)=(0.5645)(30 N)=16.935 N[/tex]

So, the applied force must be greater than this value.

Since bulb is connected in the closed circuit at the position of D

as well as switch B is also closed in that position so the current will flow through the bulb and bulb will glow in that position

So the most appropriate correct option will be

D. The light bulb will be on

Answer:

D. The light bulb will be on

Explanation:

When a bulb is placed at D it works like a load and will draw the current. The circuit will remain open until the switch B is closed. Once B is closed, the current will start flowing through the bulb and it will turn on.

It can be understood through an experiment as will. You can connect a small LED with a battery and see for yourself that the LED turns on.

First overtone of open organ pipe is given as

[tex]f_{1o} = \frac{v}{L_1 + 2e}[/tex]

first overtone of closed organ pipe is given as

[tex]f_{1c} = \frac{3v}{4(L_2 + e)}[/tex]

now they are in unison so we will have

[tex]\frac{v}{L_1 + 2e} = \frac{3v}{4(L_2 + e)}[/tex]

[tex]\frac{1}{30 + 2e} = \frac{3}{4(23 + e)}[/tex]

[tex]90 + 6e = 92 + 4e [/tex]

[tex]e = 1 cm[/tex]

so end correction of both pipes is e = 1 cm

The answer is; A

Fossil fuels are nonrenewable energy sources. This is because the rate at which they can be used by humans will definitely be higher than the rate at which they are replenished. Fossils fuels are formed over millions of years by sedimented planktons being subjected to enormous pressure and temperatures over long periods of time. Humans consume the fossil are quite fast rates that the source of energy can be depleted in some few hundred years.    

Answer:A

Explanation:

Answer:  176.4 Joules

Explanation: Potential energy of a body is defined as the energy possessed by virtue of position.

Potential energy [tex]=m\times g\times h[/tex]

m = mass of the body = 6 kg

g = acceleration due to gravity = [tex]9.8 ms^{-2}[/tex]

h = height of body = 3 m

Potential energy [tex]=6 kg\times 9.8ms^{-2}\times 3m=176.4kgm^2s^{-2}[/tex]

= 176.4Joules                 {[tex]1kgm^2s^{-2}=1Joule[/tex]}

The force of impact would be less in an elastic collision according to Newton's second law, F = ma. This is because elastic collisions spread out the time of impact, reducing acceleration and thus force. In contrast, inelastic collisions have a higher impact force, as kinetic energy is not conserved resulting in a sudden stop and a larger force.

From Newton's second law, F = ma, we know that force (F) is the product of mass (m) and acceleration (a). In a collision, the force of impact would be less when the acceleration (or deceleration) is less. This often occurs in a collision type known as an elastic collision. In an elastic collision, both momentum and kinetic energy are conserved, meaning the objects 'bounce' off each other rather than sticking together. This spreads out the time of impact, thereby reducing the acceleration and thus the force of impact. On the contrary, in an inelastic collision, which results in a higher impact force, the objects stick together and kinetic energy is not conserved, leading to a sudden stop and thus a larger force.

https://brainly.com/question/37899780

#SPJ3

'D. 18 feet' sounds right

B. 4.5 feet is the correct answer

N₀ = number of radioactive atoms initially present = 128

N = number of radioactive atoms left after time "t" = 2

t = time taken

T = half life period for the radioactive metal = 20 years

λ = decay constant = ?

decay constant is given as

λ = 0.693/T

inserting the values

λ = 0.693/20

λ = 0.0347

number of radioactive atoms left after time "t" is given as

N = N₀ [tex]e^{-\lambda t}[/tex]

inserting the values

2 = (128) [tex]e^{-(0.0347) t}[/tex]

t = 120 years

The acceleration of the fighter jet is calculated by taking the change in velocity (75 m/s - 10 m/s) divided by the time (7.0 s), which equals 9.29 m/s².

The acceleration of a fighter jet can be calculated using the formula a = Δv/Δt, where a is acceleration, Δv is the change in velocity, and Δt is the change in time. The jet accelerates from an initial velocity (vi) of 10 m/s to a final velocity (vf) of 75 m/s in a time interval (Δt) of 7.0 s. Therefore, the acceleration can be calculated as follows:

a = (vf - vi) / Δt = (75 m/s - 10 m/s) / 7.0 s = 65 m/s / 7.0 s = 9.29 m/s2

So, the acceleration of the jet is 9.29 m/s2.

C,  t=3.4s. The velocity of the car increases as you go up the y axis

3.4 is the max value of speed from curve and v axis

Answer:

By turning the vehicle "ON" position you can check to see if the gauges light works.        

When we switch ON or turn a key to ON the engine, we can find all the gauges working or not.

Answer:

static friction

Explanation:

static prevents objects from moving

The correct answer should be A. sea levels rising should not be a part of sea-floor spreading.

Hope this helps,

Davinia.

A. sea levels rising

and thats a fact!

It's POTABLE water, not 'portable'.

It's water that's safe to drink and tastes OK.

It is because of the differences in specific heats. The specific heat of water is much higher than that of lead. It takes more heat to raise water to a boiling point and keep it there than it takes lead to maintain a temperature of of 300oC.

It's all due to specific heat. The answer, though poorly worded, is the last choice.

Answer:

because water's specific heat is much greater than that of lead, therefore this amount of lead cannot contain as much heat.

Answer: 2 N/cm  (B)

Given that:

Spring stretches = 2 cm ,

Force  = 4 N,

determine

            the spring constant/elastic constant ( k)= ?

            We know that from hook's law, F = k.x  N

                                                                 4 = k × 2

                                                                => k  =4/2

                                                                         = 2 N/cm

The elastic constant is 2 N/cm

0 (zero) work done.

This is because work can be calculated by:

Work = Force × Distance

The force is 100 N and since the rock didn't move the distance is zero and so:

Work = 100 × 0 = 0 J

The amount of work done by the man on the rock will be

0 joules.

In physics, work is defined as the product of force and the displacement caused by it. Mathematically -

W = FdcosФ

Ф is the angle between 'F' and 'd' vector.

Given is a man who applies a force of 100 N to a rock for 60 seconds but the rock does not move.

Since, the rock did not move, the displacement of the rock will be zero i.e. d = 0. Therefore, the work don will be -

W = F x 0 x cosФ = 0

Therefore, the amount of work done by the man on the rock will be

0 joules.

To solve more questions on Work done, visit the link below-

https://brainly.com/question/3893991

#SPJ2

Answer

The answer is option d... All of the above..

the answer is B a freckle I just had this as a Study Island and got it right.

Ans. (B). a freckle.

Sunspots can be defined as temporary phenomena on the photosphere of sun, which appears as spot darker than its surrounding regions. Freckles on the face can model the behavior of sunspots are they represent spots brown spots on skin, darker than face complexion.

Freckles are resulted due to concentrated melaninized cells, having melanin (a type of skin pigment).

Thus, the correct answer is option (B).

From the train's frame of reference, you are moving toward the rear at your walking speed in the opposite direction of the train's forward motion. From the ground's frame of reference, you are still moving forward relative to the ground but at a slower rate than the train, considering both train speed and walking speed.

When you walk toward the rear of a moving train, your motion can be described from two different frames of reference: one on the train and one on the ground. From a reference point on the train, you are simply moving toward the rear with a certain speed relative to the train. This could be described as you moving in the opposite direction of the train's forward motion, at your walking speed. If the train is moving forward at 10 m/s and you walk toward the rear at 2 m/s, from the train's frame of reference, your velocity would be -2 m/s. Now, let's switch to a reference point on the ground. From this frame of reference, your motion is more complex because you must consider both the speed of the train and your walking speed. If the train is moving forward at 10 m/s and you are walking toward the rear at 2 m/s, your speed relative to the ground would be 10 m/s - 2 m/s, which is 8 m/s in the direction the train is moving. Essentially, you are still moving forward relative to the ground but at a slower rate than the train. It's important to note that there isn't a single, correct reference frame to describe your motion; both descriptions are valid within their respective frames. Motion does not happen in isolation, and how it is perceived depends on the reference frame of the observer.