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gogolik [260]
3 years ago
15

Describe an original example of energy changing from one form to two other forms

Physics
1 answer:
irinina [24]3 years ago
8 0
1).  an electric motor running
Electrical energy is changing into kinetic energy and a little bit of heat

2).  light a match
The chemical energy stored in the match head changes into light and heat energy.

3).  a light bulb
Electrical energy is changed into light and heat energy.
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What type of motion occurs when an object spends around and axis without altering its linear position?
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3 years ago
A 92kg astronaut and a 1200kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving
Harman [31]

Answer:

13.7m

Explanation:

Since there's no external force acting on the astronaut or the satellite, the momentum must be conserved before and after the push. Since both are at rest before, momentum is 0.

After the push

m_av_a + m_sv_s = 0

Where m_a = 92kg is the mass of the astronaut, m_s = 1200kg is the mass of the satellite, v_s = 0.14 m/s is the speed of the satellite. We can calculate the speed v_a of the astronaut:

v_a = \frac{-m_sv_s}{m_a} = \frac{-1200*0.14}{92} = -1.83 m/s

So the astronaut has a opposite direction with the satellite motion, which is further away from the shuttle. Since it takes 7.5 s for the astronaut to make contact with the shuttle, the distance would be

d = vt = 1.83 * 7.5 = 13.7 m

4 0
3 years ago
As part of his work for NASA, Dr. Murdock was asked to find out what percentage of people in the continental united States saw H
mario62 [17]

Answer:

Please, in the Explanation section you will find the explanation of the answer.

Explanation:

The exercise shows the continental United States and 3 cities used in the study carried out by Murdock. It can be said that the sample taken is part of the objective. There are several inconsistencies in Murdock's argument: the first has to do with the fact that the sample that was taken cannot represent the entire American population. A much larger, scientifically calculated sample would be required. The second is that their study did not take into account small cities or people living in the interior of the United States.

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3 years ago
Who is known as the "father of modern chemistry" because he first organized all known elements into four different
iVinArrow [24]

Answer:

D. Henry Moseley

Explanation:

I'm chemistry right now

5 0
3 years ago
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How does the sun create heat?
Triss [41]

Explanation:

sun was created through the hypothesis

3 0
2 years ago
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