If we see two objects that have different colors, the light waves coming from them have different ____________
Fill in the blank(s) with correct word
frequencies (or wavelengths)
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A 5,000 kg satellite is orbiting the Earth in a circular path. The height of the satellite above the surface of the Earth is 800 km. The velocity of the satellite is 
A. 7,460 m/s. B. 6,830 m/s. C. 6,430 m/s. D. 5,950 m/s. E. 5,350 m/s.
A car moving initially at 30 m/s comes gradually to a stop in 900 m. What was the acceleration of the car?
A. -20 m/s2 B. -0.5 m/s2 C. -10 m/s2 D. -5 m/s2
Massive stars burn their fuel less rapidly than low-mass stars.
Answer the following statement true (T) or false (F)
The normal force that acts on a block of ice that slides on a ramp
A) is equal to mg at all angles. B) decreases as the slope of the ramp increases. C) becomes greatest when the ramp is vertical.