Most of the ionosphere is found in what atmospheric layer?
a. Troposphere
b. Stratosphere
c. Mesosphere
d. Thermosphere
e. homosphere
ANSWER: d
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A steel section of the Alaska pipeline was recorded to shrink by 3.4 cm on a cold day. If the same section were twice as long, shrinkage would be
A. more than 6.8 cm. B. 6.8 cm. C. also 3.4 cm. D. 0.17 cm.
Glider A of mass of 1 kg and speed 1 m/s on a friction-free air track collides with a 5-kg glider B at rest. For an inelastic collision the combined-glider speed will be
A. 1/5 m/s. B. 1/4 m/s. C. 1/6 m/s. D. 1 m/s.
A large scale vertical downward motion in the atmosphere is a ________.
A) wind B) tornado C) front D) subsidence E) Coriolis effect
Which of the following processes is the main reason that the cooling of the ground produces dew?
A. radiative cooling B. conduction C. advection D. cooling due to the release of latent heat