I drop a 55-g golf ball from 2.50 m high. It rebounds to 1.65 m. How much energy is lost?
a. 0.46 J
b. 4.6 J
c. 0.51 J
d. 0.41 J
e. 0
a
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Which of the following describes a primary role of global circulation cells in a planet's atmosphere?
A) They transport heat from the equator toward the poles. B) They create severe weather such as thunderstorms. C) They cause air to be diverted into hurricane-like swirls. D) They keep the poles cold enough to have polar caps.
Diagnose and Investigate
What will be an ideal response?
When a 6.00-?F air-filled capacitor has a charge of ±40.0 ?C on its plates, how much potential energy is stored in this capacitor?
A) 103 ?J B) 113 ?J C) 123 ?J D) 133 ?J E) 143 ?J
Charges q and Q are placed on the x axis at x = 0 and x = 2.0 m, respectively. If q = ?40 pC and Q = +30 pC, determine the net flux through a spherical surface (radius = 1.0 m) centered on the origin.
A. ?9.6 N ? m2/C B. ?6.8 N ? m2/C C. ?8.5 N ? m2/C D. ?4.5 N ? m2/C E. ?1.1 N ? m2/C