Frictional Force is the answer..
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Insulator, or a semi-conductor. A semi-conductor is a specific type of insulator.
<span>Water is known as the universal solvent because it is capable of dissolving a variety of substances, more than any other liquid.
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This is fairly easy. The earlier view of the solar system (geocentric) was all based on how other planets and the sun were constantly revolving the earth and we were completely stationary. The Heliocentric view has been proved to be accurate, and it is that the sun is stationary and the planets are revolving it. The similarities are that in that time, it was a continued belief that the planets were the Roman Gods, i.e. Jupiter, Neptune. Another thing is that they were correct in the Geocentric theory with the thought that the planets revolved around something.
B. Parabolic
This is because an object that is in projectile motion has gravity acting on it.