A particle (m = 50 g, q = 5.0 mC) is released from rest when it is 50 cm from a second particle (Q = -20 mC). Determine the magnitude of the initial acceleration of the 50-g particle
a. 54 m/s2
b. 90 m/s2
c. 72 m/s2
d. 65 m/s2
e. 36 m/s2
C
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Two pulses of light, one red and one blue, have the same energy. The pulse with the greater number of photons is the
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