The velocity of a car changes from 60. meters per second north to 45 meters per second north in 5.0 seconds. the magnitude of the car's acceleration is

Because there are fewer air molecules pushing back as the pump removes air from the well, the pressure outside the well has a greater impact. The amount of water that could be pushed up the pipe by the pressure being applied to it would be insufficient.

A mechanical device called a pump is used to move various fluids from one place to another. It is a hydraulic device that transfers fluids from low to high pressure and from low to high levels of elevation.

The pump moves fluid by transforming the mechanical energy of the fluid into pressure energy (hydraulic energy).

Processes requiring high hydraulic pressure can also use the hydraulic pump. With the aid of large machinery, it may be seen. In general, heavy machinery requires high discharge pressures and low suction pressures.

Therefore,Because there are fewer air molecules pushing back as the pump removes air from the well, the pressure outside the well has a greater impact. The amount of water that could be pushed up the pipe by the pressure being applied to it would be insufficient.

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Answer:

[tex]6\times 10^{3} Pounds[/tex]

Explanation:

Given that the Gina moms truck weight is 6000 pounds.

And we also know that the 6000 pounds can be written as in the form.

[tex]6000=6\times 10\times 10\times 10[/tex]

Further more it can be written as,

[tex]6000Pounds=6\times 10^{3} Pounds[/tex]

Therefore the weight of the truck which is 6000 Pounds can be written in exponential form as [tex]6\times 10^{3} Pounds[/tex].

Answer: Option D

Explanation: The cellular respiration and photosynthesis both is performed by the plants. The process of photosynthesis can be defined as the process by which the carbon dioxide and sunlight is used by the plants to make food( glucose) and releases oxygen.

This process convert light energy into chemical energy. The product formed is stored in the form of starch.

The cellular respiration breaks down the glucose and provides energy for the cells to do work.

Answer:

the answer is 0

Explanation:

The acceleration of a car that maintains a constant velocity of 100 km/h for 100s is zero. Acceleration is a change in velocity. Thus, if velocity is constant, that means there is no change and velocity stays the same.

The line graph of speed versus time for an object pulled into the sun would be a curved line that slopes upward, indicating continuously increasing speed due to increasing gravitational force.

When an object is pulled into the sun by gravity, the gravitational force increases as it gets closer to the sun. This results in the object accelerating more as it approaches. Therefore, a line graph plotting the speed of the object against time would display a curved line that slopes upward. This curve represents the object's continuously increasing speed over time due to the increasing gravitational pull.

Serbian-American engineer and physicist Nikola Tesla (1856-1943) made dozens of breakthroughs in the production, transmission and application of electric power.

He invented the first alternating current (AC) motor which is used all over the world in business, factories and power plants.

He developed AC generation and transmission technology that we still have as the main form of delivering power to all consumers nowdays.

Here are a few of the fundamental words in ecology, which are simple, but may be easy to mix up because they are so similar. It is, however, quite important to be clear of what they mean. I will here try to explain how they differ by defining them and giving a few examples to illustrate how they could be applied. 

A habitat is basically the site where an organism or a group lives. It may be anything from a stone in a lake, on which algae grows, to a forest containing all sorts of creatures. Note that groups within a habitat do not need to be of the same species. However, one usually speaks of habitats of individuals, species, or larger groups. For instance, the habitat of the algae would be the stone in the lake, and the forest could be the habitat of a single bear – regardless of what other organisms live there and how they are geographically distributed; here we are interested in the bear, so we define the habitat as its home range, and all that falls within it will arbitrarily be a apart of its habitat. hope this helps

The electrostatic force of attraction between two charges, a and b, is proportional to the product of their magnitudes.

The force of attraction between two point charges is given by Coulomb's law:

F = k  |q₁ × q₂| / r²

where k is the Coulomb constant, q1 and q2 are the magnitudes of the charges, and r is the distance between the charges.

The force of attraction or repulsion between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

This relationship is known as Coulomb's law.

Thus, they proportional to the product of their magnitudes.

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Answer:

Answered

Explanation:

Water when mixed with Sodium chloride also called common salt to form a solution called Brine. Brine high concentration solution of Nacl( sodium chloride or salt and water). It is used as preservatives. It is also used as a refrigerating fluid and it is also used for deicing in lower temperatures.  

The value of the voltage across the capacitor at the end of three time constants is 5.97 V.

The electric potential energy of a capacitor is the energy stored by it.

It is given that the fully charged capacitor with a voltage of 120 v is discharged through a resistor.

Here, the time T is three times to the time constant. The value at this point, the potential difference around the capacitor, equals the maximum potential.

The voltage across the capacitor at the end of three time constants is,

[tex]V=120\times e^{-3}\\V=5.97\rm \; V[/tex]

Thus, the value of the voltage across the capacitor at the end of three time constants is 5.97 V.

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The free-fall acceleration on the moon's surface is about 1.58 m/s²

[tex]\texttt{ }[/tex]

Newton's gravitational law states that the force of attraction between two objects can be formulated as follows:

[tex]\large {\boxed {F = G \frac{m_1 ~ m_2}{R^2}} }[/tex]

F = Gravitational Force ( Newton )

G = Gravitational Constant ( 6.67 × 10⁻¹¹ Nm² / kg² )

m = Object's Mass ( kg )

R = Distance Between Objects ( m )

Let us now tackle the problem !

[tex]\texttt{ }[/tex]

Given:

Period of Satellite = T = 110 min = 6600 s

Radius of Moon = R = 1.74 × 10⁶ m

Asked:

free-fall acceleration on the moon's surface = g = ?

Solution:

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

[tex]G \frac{ M m} { R^2 } = m \omega^2 R[/tex]

[tex]G \frac { M } { R^2 } = \omega^2 R[/tex]

[tex]g = \omega^2 R[/tex]

[tex]g = (\frac{2 \pi }{ T} )^2 R[/tex]

[tex]g = ( \frac {2\pi} { 6600 } )^2 \times ( 1.74 \times 10^6 )[/tex]

[tex]g \approx 1.58 \texttt{ m/s}^2[/tex]

[tex]\texttt{ }[/tex]

[tex]\texttt{ }[/tex]

Grade: High School

Subject: Physics

Chapter: Gravitational Fields

Answer:

1,500

Explanation:

If it takes 150 Newtons of force to move a box 10 meters, then the work done on the box would be 1500 Joules .

The total amount of energy transferred when a force is applied to move an object through some distance .

The work done is the multiplication of applied force with displacement.

Work Done = Force ×  Displacement

As given in the problem If it takes 150 n of force to move a box 10 meters , then we have to find out  what is work done on the box ,

The work done = 150 × 10

                          = 1500 Joules

Thus , If it takes 150 Newtons of force to move a box 10 meters, then the work done on the box would be 1500 Joules .

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The answer is A. President John Adams

Final answer:

The time taken for an Audi to travel 22 km at a speed of 88 km/hr is 0.25 hours or 15 minutes.

Explanation:

To calculate the time taken for an Audi to travel a distance of 22 km at a speed of 88 km/hr, we use the formula:

Time = Distance / Speed

Plugging in the values, we have:

Time = 22 km / 88 km/hr

Time = 0.25 hours

Therefore, the Audi takes 0.25 hours to travel 22 kilometers. To get the time in minutes, we can multiply the hours by 60:

Time in minutes = 0.25 hours × 60 minutes/hour

Time in minutes = 15 minutes

The Audi will take 15 minutes to cover the 22 km distance at a speed of 88 km/hr.

The magnitude of the block's acceleration is determined as 0.57 m/s².

How to calculate the magnitude of the block's acceleration?

The magnitude of the block's acceleration is calculated by applying the following formula as shown below;

F(net) = ma

where;

F(applied) - F(parallel component of weight) - F(friction) = ma

F - mg sinθ - μmg cosθ = ma

where;

The magnitude of the block's acceleration is calculated as;

250 - (50 x 9.8 x sin 15) - (0.2 x 50 x 9.8 x cos 15) = 50a

28.52 = 50a

a = 28.52 / 50

a = 0.57 m/s²

The variety of species in an ecosystem is known as biodiversity.

All of the species that interact with one another, as well as the physical habitat in which they live, make up an ecosystem.

Biodiversity, or biological diversity, refers to the variety and variability of life present on earth. It is a measure of genetic, species, and ecosystem variation on earth.

Biodiversity conservation refers to the preservation and management of biodiversity in order to gain resources for long-term development.

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Answer:

It is Telurium

Explanation:

This element since belong to the family VI A in the periodic table, the charge -2 is the most common of these elements. Also, its color is silver - white, because is a metalloid has luster (a property of metals) and is very brittle ( a property of non-metals). Its symbol is Te.

Final answer:

A bucket of water stays contained when whirled in a vertical circle due to the centripetal force, which must exceed gravity's pull. Fluid dynamics, explained by Bernoulli's Equation, also dictates that water will squirt further from a hose when the opening is partially covered, water streams widen when shot upwards from a fountain, and narrow when falling downward from a faucet.

Explanation:

A bucket of water can be whirled in a vertical circle without the water spilling out because of the phenomenon known as centripetal force. At the top of the circle, even though the bucket is upside down, the water stays in the bucket due to the inward force that is directed towards the center of the circle. This force keeps the water pressed against the bottom of the bucket. The key factor here is maintaining a speed that is high enough so that the centripetal force exceeds the force of gravity acting on the water. If the speed is too slow, gravity will overcome this force and the water will spill out.

Bernoulli's Equation can help further understand similar phenomena involving fluid dynamics. For instance, covering the end of a garden hose with a thumb causes the water to squirt out at a greater distance due to the increased water velocity as a result of the reduced cross-sectional area. Similarly, when water is shot nearly vertically upward in a decorative fountain, it broadens as it rises due to decreased velocity and increased pressure. Conversely, a stream of water falling straight down narrows due to the increase in velocity and decrease in pressure as it falls.

The water does not spill out of the bucket when it is whirled in a vertical circle, including at the top of the circle when the bucket is upside down, due to the centripetal force that keeps the water adhered to the bottom of the bucket.

When a bucket of water is whirled in a vertical circle, several forces come into play. The key force that prevents the water from spilling out is the centripetal force. This force is directed towards the center of the circular path that the bucket follows.

At the top of the circle, when the bucket is upside down, gravity is acting in the opposite direction to the centripetal force. However, if the bucket is whirled fast enough, the centripetal acceleration \( a_c \) required to keep the water moving in a circle can exceed the acceleration due to gravity \( g \). This can be expressed by the equation:

[tex]\[ a_c = \frac{v^2}{r} \][/tex]

For the water to remain in the bucket at the top of the circle, the following condition must be met:

[tex]\[ \frac{v^2}{r} \geq g \][/tex]

This means that the centripetal acceleration must be greater than or equal to the acceleration due to gravity for the water to stay in the bucket. When this condition is satisfied, the water is pressed against the bottom of the bucket (which is now above it) with a force that is equal to or greater than the force of gravity pulling down on the water.

Additionally, the surface tension of the water and the adhesive forces between the water and the bucket can also help to keep the water from spilling out. These forces create a sort of film that can hold the water together and to the bucket, especially if the bucket is whirled quickly enough.

Therefore, as long as the bucket is whirled with sufficient speed to generate a centripetal force that counteracts gravity, the water will not spill out, even when the bucket is upside down at the top of the vertical circle."

The acceleration provided by the car's brakes is -1.259 [tex]m/s^2[/tex].

Given the following data:

To find the acceleration provided by the car's brakes, we would use the third equation of motion:

[tex]V^2 = U^2 + 2aS[/tex]

Where:

Substituting the parameters into the formula, we have;

[tex]0^2 = 23^2 + 2a(210)\\\\-529 = 420a\\\\a = \frac{-529}{420}[/tex]

Acceleration, a = -1.259 [tex]m/s^2[/tex]

Therefore, the acceleration provided by the car's brakes is -1.259 [tex]m/s^2[/tex].

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