A tennis ball bounces on the floor three times, and each time it loses 23.0% of its energy due to heating. How high does it bounce after the third time, if we released it 4m from the floor?
A) 180 mm B) 240 cm C) 18 cm D) 180 cm
D
Physics & Space Science
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If protons are accelerated from rest in a Van de Graff accelerator through a potential difference of 1.00 MV, what is their resulting speed?
a. 
b. 
c. 
d. 
e. 
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During summer, the northern polar cap of Mars is made of
A) carbon dioxide ice overlaying water ice B) a layer of carbon dioxide ice C) a layer of water ice D) water ice overlaying carbon dioxide ice
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If the frequency of blinks for a light source appears to double as the light source approaches you, the frequency of blinks as it moves away from you at the same speed
A) is halved. B) is doubled. C) stays the same.
Physics & Space Science
The number of cycles of a wave passing a point per unit time is the wave's __________
Fill in the blank(s) with correct word
Physics & Space Science