If a wave's frequency doubles, its wavelength:
A) is halved.
B) is also doubled.
C) is unchanged, as c is constant.
D) is now 4 times longer.
E) becomes 16 times longer.
A
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Discuss the modes of heat transfer that determine the equilibrium temperature of the space shuttle Endeavor when it is in orbit. What happens when it reenters the earth’s atmosphere?
GIVEN
- Space shuttle Endeavor in orbit
- Space shuttle Endeavor during reentry
FIND
(a) Modes of heat transfer
SKETCH
A rocket moving in outer space maintains a constant acceleration (magnitude = 20 m/s2) while ejecting fuel at a speed of 15 km/s relative to the rocket. If the initial mass of the rocket is 3 000 kg, what is the magnitude of the thrust after 800 kg of fuel have been consumed?
a. 56 kN b. 48 kN c. 52 kN d. 44 kN e. 36 kN
Uplift of the Rocky Mountains was a result of
A) compressional forces. B) tensional forces. C) crustal extension. D) none of these
The change in fossils at the K-T sediment layer suggests that in addition to the dinosaurs, _________ also went extinct.
Fill in the blank(s) with the appropriate word(s)