At one instant a heavy object in air is moving upward at 50 m/s. One second later its speed is approximately
A) 40 m/s.
B) 50 m/s.
C) 55 m/s.
D) 60 m/s.
Answer: A
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The youngest features visible with telescopes on the Moon are:
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An amount of water forms a single hexagonally symmetric snowflake. Elsewhere the same amount of water is a droplet of liquid water. Which state has higher entropy?
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Grandfather clocks often are built so that each one-way swing of the pendulum is a second. How long is the length of a simple pendulum for a 2.00 second period?
A) 0.993 m B) 24.8 cm C) 101.cm D) 0.500 m E) 500. cm
Aliens on Krypton build a spacecraft 472. teef long. In their units the speed of light is 22.2 million teef/ces. How fast (teef/ces) must it travel to appear to be 66.6 teefs long?
What will be an ideal response?