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3 years ago

A rock falls from the top of a cliff. What will happen to the rock's kinetic energy when it strikes the ground below?

Physics

2 answers:

Paha777 [63]3 years ago

7 0

Answer:

Explanation:

It creates an equal amount of p energy.

REMEMBER: ENERGY CAN NEVER BE CREATED OR DESTROYED.

Salsk061 [2.6K]3 years ago

6 0

B. It will create an equal amount potential energy. (Don’t know if I’m right)

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What unit is used for speed? 1. m/s 2. S 3. m/s2 4. m

bixtya [17]

Answer:

The unit of speed is m/s.

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3 years ago

A father places his daughter in a swing that is 0.60\,\text{m}0.60m0, point, 60, start text, m, end text above ground. Then he r

schepotkina [342]

This question involves the concepts of the law of conservation of energy and kinetic energy.

The girl's fastest speed is "3.7 m/s".

According to the law of conservation of energy, the girl will have the fastest speed at mean position, which will be calculated as follows:

Loss in Potential Energy = Gain in Kinetic Energy

$mg\Delta h=\frac{1}{2}mv^2\\\\v=\sqrt{2g\Delta h}$

where,

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Therefore,

$v=\sqrt{2(9.81\ m/s^2)(0.7\ m)}$

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Learn more about the Law of Conservation of Energy here:

brainly.com/question/381281?referrer=searchResults

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2 years ago

A 7300 N elevator is to be given an acceleration of 0.150g by connecting it to a cable of negligible weight wrapped around a tur

Firlakuza [10]

Answer:

α =18.75 rad/s²

Explanation:

Given that

Acceleration a = 0.15 g

We know that g =10 m/s²

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d= 16 cm

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Lets take angular acceleration =α rad/s²

As we know that

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4 years ago

For 0.37 moles of oxygen (02) gas at room temperature with active translational and rotational degrees of freedom.

Lelechka [254]

Answer:

B. 161.5 J

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$c_{p}$ = specific heat at constant pressure = 3.5

At constant pressure, heat is given as

$Q = n c_{p} R \Delta T\\Q = (3.5) (0.37) (8.314) (15)\\Q = 161.5 J$

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3 years ago

Why is photosynthesis essential for plant homeostasis?

aalyn [17]

It should be answer choice b

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3 years ago

Read 2 more answers