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4 years ago

Acceleration can be defined as the rate at which velocity ________

Physics

2 answers:

Savatey [412]4 years ago

8 0

Answer:

The speed is 20 m/s, and the direction is "downward". Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.

Explanation:

EleoNora [17]4 years ago

7 0

Acceleration is the rate of the change in velocity.

The answer would be the rate at which velocity changes.

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3) Find the atomic weight of the element.

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Answer:

To find the number of neutrons in an atom, you would subtract:

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4 years ago

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nikitadnepr [17]

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4 years ago

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Two objects must be in contact for them to exert a force on each other. <br><br> True<br> False

Irina-Kira [14]

Answer:

False

Explanation:

The given statement "Two objects must be in contact for them to exert a force on each other" is not true as there are many types of forces that doesn't require being in contact for exerting a force.

One such example is the gravitational force acting between two bodies. Gravitational force is the force of pull with which a body pulls another body without being in contact.

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$Force=\frac{GMm}{R^2}\\Where,G\to \textrm{Universal Gravitational constant}$

The gravitational force acts always act between bodies that have mass. The bodies are not in contact yet experience force.

Therefore, the given statement is false.

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3 years ago

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