During which season will more insolation be delivered to a vertical south-facing window on a clear day?
a. winter b. fall c. spring d. summer e. depends upon the R-value
Question 2
A catcher arranges to catch a baseball dropped from a height 50 m above his glove. However, his friends substitute a soft 250 g red grapefruit, so that it will smash apart when he catches it. His glove stops the grapefruit in 0.010 s. What force does the glove exert on the grapefruit?
a. 0.078 3 N
b. 783 N
c. 2 450 N
d. 24 500 N
e. 78 300 N
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