The latent heat of vaporization of water is roughly 10 times the latent heat of fusion of water. The amount of heat required to boil away 1 kg of water is 10 times the amount of heat required to melt 1 kg of ice
a. True
b. False
Indicate whether the statement is true or false
True
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Projectile Motion: A football kicker is attempting a field goal from 44 m out. The ball is kicked and just clears the lower bar with a time of flight of 2.9 s. If the angle of the kick was 45°, what was the initial speed of the ball, assuming no air resistance?
A. 21.5 m/s B. 19.7 m/s C. 2.2 m/s D. 39 m/s
Wave interference occurs for waves of
A) sound. B) light. C) water. D) all of the above E) none of the above
William Herschel discovered the green disk of ________ as the first telescopic planet
Fill in the blank(s) with correct word
A pendulum that was originally erected by Foucault at the Pantheon in Paris for the Paris Exhibition in 1851 was restored in 1995. It has a 28.0-kg sphere suspended from a 67.0-m light cable
How long would it take for the bob in this pendulum to move from the position of maximum displacement down to the equilibrium point? A) 4.11 s B) 21.5 s C) 2.58 s D) 32.2 s E) 42.9 s