At what rate is a 60.0-kg boy using energy when he runs up a flight of stairs 10.0-m high, in 8.00 s?
A)
80.0 W
B)
75.0 W
C)
736 W
D)
4.80 kW
E)
48 W
C
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a. 400 times b. 4000 times c. 100 times d. 1000 times e. 40 times
Which of the following statements best explains why the densities of Uranus and Neptune are higher than that of Saturn, even though Saturn is much more massive?
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Indicate whether the statement is true or false
The ________ tides have a large change from high to low, near new and full moons
Fill in the blank(s) with correct word