The intensity of radiation reaching the earth from the sun is 1 350 W/m2 . The earth's radius is 6.4 × 10^6 m. How big a force does this radiation exert on the earth? (Assume it is all absorbed.)
a. 5.8 × 10^8 N
b. 1.2 × 10^9 N
c. 2.3 × 10^9 N
d. 4.6 × 10^9 N
e. 1.7 × 10^17 N
a
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You are inside a jet plane moving at a constant velocity. You toss a rock straight up in the air, and then you keep your hand at the point of release. The rock comes down in your hand. This example illustrates
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