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2 years ago

8

A donkey pulls a crate up a rough, inclined plane at constant speed. Which one of the following statements concerning this situa

tion is false

1 answer:

asambeis [7]2 years ago

8 0

The statement Gravity exerts zero joules of energy on the object is false.

<h3>What is gravity?</h3>

The force of attraction between any two objects in the universe is known as gravity or gravitational force.
The mass of the object and the square of the distance between them determine the force of attraction.
The weakest known force in nature, it is by far.

The force that pulls items toward the center of a planet or other entity .
All of the planets are kept in orbit around the sun by gravity.

<h3>What is work?</h3>

Work is defined as the energy that is applied to or removed from an object by applying force along a displacement.
It is frequently described in its most basic form as the result of force and displacement.

Learn more about work here:

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3 years ago

A balloonist happens to drop his metal ballpoint pen from his balloon as he is taking notes on his flight. Because his pen has a

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3 years ago

Which statement describes a characteristic of an experimental design that

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c

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3 years ago

the half-life of carbon-14 is 5,730 years. After 11,460 year, how much of original carbon-14 remains?

Inessa [10]

Via the half-life equation:

$A_{final}=A_{initial}(\frac{1}{2})^{\frac{t}{h}}$

Where the time elapse is 11,460 year and the half-life is 5,730 years.

$A_{final}=A_{initial}(\frac{1}{2})^\frac{11460}{5730} \\\\A_{final}=A_{initial}\frac{1}{4} \\\\A_{final}=\frac{1}{4}A_{initial}$

Therefore after 11,460 years the amount of carbon-14 is one fourth (1/4) of the original amount.

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3 years ago