For a periodic process, the number of cycles per unit time is called the
A)
amplitude.
B)
wavelength.
C)
frequency.
D)
period.
E)
pulse.
C
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Two spaceships approach Earth from opposite directions. One has a speed of 0.21c and the other a speed of 0.34c, both relative to Earth. What is the speed of one spaceship relative to the other?
A) 0.51c B) 0.55c C) 0.58c D) 0.61c E) 0.64c
A sheet of red paper will look black when illuminated with
A) red light. B) yellow light. C) magenta light. D) cyan light. E) none of the above
The two types of mechanical energy are ______________ and ______________
Fill in the blank(s) with correct word
Warm climates favor carbonate deposition because carbonates dissolve more easily in cold water than in warm water. Name two types of carbonate depositional environments
What will be an ideal response?