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Tanya [424]
3 years ago
13

Science requires theories that can be tested by research. true false

Physics
1 answer:
dezoksy [38]3 years ago
3 0
True Requires the development of theories that can be tested by systematic research.
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Why were early solar panels not popular
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1:  They had toxic metals and they were massive. They took up way too much space for some people's money and they weren't exactly the best and most efficient so some people didn't like them.

3: Solar panels would work very well in space because they don't have clouds and dust to block out sunlight like there is on Earth. In space, there wouldn't be a source such as wind or coal or anything, so it would be more efficient to use solar panels since there is a more direct sunlight path.

Explanation:

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A 3900 kg truck is moving at 6.0 m/s what is the kinetic energy
Stolb23 [73]

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70200J

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3 0
3 years ago
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A 4 kg bird is flying with a velocity of 4 m/s. What is its kinetic energy?
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A person pulls a box across the floor with a rope. The rope makes an angle of 40 degrees tot he horizontal, and a total of 125 n
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Force applied = 125Newtons

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Hope it helps

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2 years ago
According to Kepler, what do all bodies in orbit around another have in common?
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All follow an elliptical path that has two foci, rather than a circular path.

Kepler found paths are elliptical, not circular
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