The circuit below contains three 100-watt light bulbs and a capacitor. The emf ? = 110V. The capacitor is fully charged. Which light bulb(s) is(are) dimmest?
a.
A
b.
B
c.
C
d.
A and B
e.
All three are equally bright (or dim).
c
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Two pistons push down on the fluid filling two cylinders connected by a narrow hose, as shown in the figure. The area A1 is 1 square inch, and the area A2 is 10 square inches. A force of 4 pounds is exerted downward on piston 1, as shown
 The pressure on A2 is 40 psi. a. True b. FalseA 160 lb person has a mass of 160/32 = 5 slugs. A 160 lb person steps into an elevator and stands on a bathroom scale. Determine the scale reading for the given scenarios. The elevator is accelerating upwards at 2 ft/s2
a. 150 lb c. 170 lb b. 160 lb d. none of the above
A ball is thrown vertically into the air. Because of air resistance, its time coming down compared with its time going up is
A) less. B) the same. C) more.
Current data from satellite measurements of temperature in the troposphere, despite errors in early data, reveal
A) remarkable agreement with surface temperatures. B) sharp differences with surface temperatures. C) no correlation between temperature and levels of greenhouse gases. D) a general cooling of global atmospheric temperatures.