The power of an engine is a measure of
A. the total amount of work it can perform.
B. its volume.
C. its ability to outperform a horse.
D. the rate at which it can perform work.
Answer: D
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Using a longer-handled wrench to loosen a tight nut allows you to
A. apply more torque to the nut. B. exert more force on the nut. C. increase the moment of inertia of the nut. D. pull harder on the wrench.
The type of detector that requires a magnetic field to "view" charged particles is a
A) spark chamber. B) bubble chamber. C) scintillation counter. D) cloud chamber. E) Geiger tube.
Stars in the same constellation
a. probably formed at the same time. b. must be part of the same cluster of stars in space. c. must have been discovered at about the same time at the same location in space. d. may actually be very different distances away from the observer and from each other.
Determine the energy stored in the 60-?F capacitor
a.
2.4 mJ
b.
3.0 mJ
c.
3.6 mJ
d.
4.3 mJ
e.
6.0 mJ