A car moves from the point (3.0 m)x + (5.0 m)y to the point (8.0 m)x - (7.0 m)y in 2.0 s. What is the magnitude of the average velocity of the car?
A)
6.5 m/s
B)
13 m/s
C)
9.0 m/s
D)
4.5 m/s
E)
3.3 m/s
A
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The radius of a star is 6.95 × 108 m, and its rate of radiation has been measured to be 5.32 × 1026 W
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