PHYSICS HIGH SCHOOL

In scientific terms, how is power related to work? A.Power is the ability to do work.


B.Power is the force of work over a certain distance.


C.Power is the rate at which work is accomplished.


D.Power is the energy supplied in a force.

Answers

Answer 1
Answer: C. the rate at which work is done. hope i helped!

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What is a force that does not involve physical contact between two objects? a. gravitational force
c. constant force
b. field force
d. planetary force?

Answers

a force that does not involve physical contact between two objects ic called field force.

a force that does not involve physical contact between two objects ic called field force.

How did Marie Curie’s research in radioactivity benefit others while harming her

Answers

 The discoveries Mme Curie made were of great benefit to physics, chemistry and medicine. During the time she was doing her research, the health effects of ionizing radiation were not known. The amount of radiation that she was exposed to led to her death. Even today her notebooks and other personal effects are highly contaminated with radioactive material. 

What is it called when air particles spread apart?

Answers

When air particles bunch up, it's called a compression-rarefaction.
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A car accelerates uniformly from rest to a speed of 58.3 mi/h in 9.47 s. Find the constant acceleration of the car.

Answers

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What kind of relationship between the independent and dependent variable does this graph illustrate? A. inverse proportion
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Answers

Answer:

C. quadratic

Explanation:

Linear graphs are straight lines, and direct proportion graphs are lines that pass through the origin.

Inverse proportion graphs have vertical and horizontal asymptotes passing through the origin.

Quadratic graphs are parabolas.

The graph shown is a parabola, or quadratic.

Two identical beakers with the same volume of water are placed on each pan of a double-pan balance. A steel ball is suspended from a string and submerged in the water of one of the containers. A hollow plastic ball of the same volume is submerged in the water of the other container and fastened to the bottom of the beaker by a string. Will the balance move, and if so in which direction?

Answers

Answer:

The pan having beakers with steel ball will go down.

Explanation:

Both steel ball and plastic ball will experience buoyant force in upward direction . These forces will have same magnitude because they displace same volume of water. Both of them experience reaction force of buoyant force acting in downward direction which will try to lower the pan equally. But in case of plastic ball which is tied to the bottom , the tense  string will apply a force equal to buoyant force in upward direction on the bottom of the beaker.

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