A bullet fired horizontally over level ground hits the ground in 0.5 second. If it had been fired with twice the speed it would have hit the ground in

A) less than 0.5 s.
B) 0.5 s.
C) more than 0.5 s.


Answer: B

Physics & Space Science

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Suppose you drop a 10-pound weight and a 5-pound weight on the Moon, both from the same height at the same time. What will happen?

A) The 10-pound weight will hit the ground before the 5-pound weight. B) Both will hit the ground at the same time. C) Both weights will float freely, since everything is weightless on the Moon.

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Describe how Erastothenes measured the circumference of our planet

What will be an ideal response?

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Which of the following is an example of chemical energy?

A) the energy stored in firewood that has been gathered for burning B) the energy stored in your body, that enables you to do work C) Both of the above. D) the energy in a stretched rubber band E) the energy in hot steam

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The most information about our environment comes to us through the sense of

a. smell. b. sight. c. hearing. d. touch.

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