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3 years ago

PLEASE ANSWER!!! WILL GIVE BRAINLIEST!!!!!

2 answers:

8 0

Modern civilization is possible because people have learned how to change energy from one form to another and then use it to do work. People use energy to walk and bicycle, to move cars along roads and boats through water, to cook food on stoves, to make ice in freezers, to light out homes and offices, to manufacture products, and to send astronauts into space. There are many different forms of energy, including heat, light, motion, electrical, chemical, and gravitational.

Kipish [7]3 years ago

6 0

Answer:

the ability to do work.

EXPLAINATION: .

in other words "the potential for causing changes" or "energy is the cause of any change" or "a work that a certain force *eg: gravitational* can do.

sorry if this is not the answer that you wanted but I couldn't understand your question that's why I wrote what I understood.

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Your body also transforms what energy

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Chemical energy is transformed in your body

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3 years ago

Which of the following is a zone found in the open ocean

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What are your answer choices?

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3 years ago

Read 2 more answers

I need the solution to this

posledela

Answer:

He could jump 2.6 meters high.

Explanation:

Jumping a height of 1.3m requires a certain initial velocity v_0. It turns out that this scenario can be turned into an equivalent: if a person is dropped from a height of 1.3m in free fall, his velocity right before landing on the ground will be v_0. To answer this equivalent question, we use the kinematic equation:

$v_0 = \sqrt{2gh}=\sqrt{2\cdot 9.8\frac{m}{s^2}\cdot 1.3m}=5.0\frac{m}{s}$

With this result, we turn back to the original question on Earth: the person needs an initial velocity of 5 m/s to jump 1.3m high, on the Earth.

Now let's go to the other planet. It's smaller, half the radius, and its meadows are distinctly greener. Since its density is the same as one of the Earth, only its radius is half, we can argue that the gravitational acceleration g will be half of that of the Earth (you can verify this is true by writing down the Newton's formula for gravity, use volume of the sphere times density instead of the mass of the Earth, then see what happens to g when halving the radius). So, the question now becomes: from which height should the person be dropped in free fall so that his landing speed is 5 m/s ? Again, the kinematic equation comes in handy:

$v_0^2 = 2g_{1/2}h\implies \\h = \frac{v_0^2}{2g_{1/2}}=\frac{25\frac{m^2}{s^2}}{2\cdot 4.9\frac{m}{s^2}}=2.6m$

This results tells you, that on the planet X, which just half the radius of the Earth, a person will jump up to the height of 2.6 meters with same effort as on the Earth. This is exactly twice the height he jumps on Earth. It now all makes sense.

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3 years ago

How is color related to wavelength?

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Each color has a different wavelength allowing the eye to see it.

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3 years ago

The property of matter that describes what it is made of

const2013 [10]

Answer:

Miixture

Explanation:

The answer is mixture

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3 years ago