Charge of uniform density 50 nC/m3 is distributed throughout the inside of a long nonconducting cylindrical rod (radius = 5.0 cm). Determine the magnitude of the potential difference of point A (2.0 cm from the axis of the rod) and point B (4.0 cm from the axis)
a. 2.7 V
b. 2.0 V
c. 2.4 V
d. 1.7 V
e. 3.4 V
d
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One of the discoveries made by the Voyager probes while near Jupiter was
A) Io has a featureless surface that never changes. B) a thin ring of dust around the equator. C) the absence of a magnetic field around the giant planet. D) that the Great Red Spot is uniform and featureless. E) each of the four large moons produces a strong magnetic field.
Saturn's 1990 white spot had some similarities to Jupiter's Great Red Spot. Discuss some of the similarities and differences. Speculate as to what might cause these
What will be an ideal response?
The blueness of the sky results from
a. preferential scattering of light by gas molecules. b. the lapse rate. c. the greenhouse effect. d. latent heat.
Conservation of Momentum: A rocket explodes into two fragments, one 25 times heavier than the other. The magnitude of the momentum change of the lighter fragment is
A. 25 times as great as the momentum change of the heavier fragment. B. The same as the momentum change of the heavier fragment. C. 1/25 as great as the momentum change of the heavier fragment. D. 5 times as great as the momentum change of the heavier fragment. E. 1/4 as great as the momentum change of the heavier fragment.