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Physics Question thank you?
A photon of red light (wavelength = 700 nm) and a Ping-Pong ball (mass = 1.90 × 10-3 kg) have the same momentum. At what speed is the ball moving?
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- az_lenderLv 79 hours ago
Photon's momentum is h/lambda = 9.466 x 10^(-28) kg*m/s.
v = p/m = 4.98 x 10^(-25) m/s, basically undetectable!
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