Explanation The magnetic force supplies the centripetal acceleration for the electrons. So, m v 2 r = q v B p = m v = q r B m is the mass q is the charge v is the velocity p is the momentum r is the radius of the path The maximum kinetic energy is, K E max = p 2 2 m = q 2 r 2 B 2 2 m Substitute 1.60 × 10 − 19 C for q , 20 cm for r , 2.00 × 10 − 5 T and 9.11 × 10 − 31 kg for m . K E max = ( 1.60 × 10 − 19 C ) 2 ( ( 20 cm ) ( 10 − 2 m 1 cm ) ) 2 ( 2.00 × 10 − 5 T ) 2 2 ( 9.11 × 10 − 31 kg ) = 2

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Chapter 27, Problem 47AP

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The work function of the metal.

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Bundle: College Physics, 11th + WebAssign Printed Access Card for Serway/Vuille's College Physics, 11th Edition, Multi-Term

Ch. 27.5 - Prob. 27.1QQ Ch. 27.5 - Prob. 27.2QQ Ch. 27.5 - Prob. 27.3QQ Ch. 27.6 - Prob. 27.4QQ Ch. 27.6 - Prob. 27.5QQ Ch. 27 - Prob. 1CQ Ch. 27 - Prob. 2CQ Ch. 27 - Prob. 3CQ Ch. 27 - Prob. 4CQ Ch. 27 - Prob. 5CQ

Ch. 27 - Prob. 6CQ Ch. 27 - Prob. 7CQ Ch. 27 - Prob. 8CQ Ch. 27 - Prob. 9CQ Ch. 27 - Prob. 10CQ Ch. 27 - Prob. 11CQ Ch. 27 - Prob. 12CQ Ch. 27 - Prob. 13CQ Ch. 27 - Prob. 14CQ Ch. 27 - Prob. 15CQ Ch. 27 - Prob. 16CQ Ch. 27 - Prob. 1P Ch. 27 - Prob. 2P Ch. 27 - Prob. 3P Ch. 27 - Prob. 4P Ch. 27 - Prob. 5P Ch. 27 - Prob. 6P Ch. 27 - Prob. 7P Ch. 27 - Prob. 8P Ch. 27 - Prob. 9P Ch. 27 - Prob. 10P Ch. 27 - Prob. 11P Ch. 27 - Prob. 12P Ch. 27 - Prob. 13P Ch. 27 - Prob. 14P Ch. 27 - Prob. 15P Ch. 27 - Prob. 16P Ch. 27 - Prob. 17P Ch. 27 - Prob. 18P Ch. 27 - Prob. 19P Ch. 27 - Prob. 20P Ch. 27 - Prob. 21P Ch. 27 - Prob. 22P Ch. 27 - Prob. 23P Ch. 27 - Prob. 24P Ch. 27 - Prob. 25P Ch. 27 - Prob. 26P Ch. 27 - Prob. 27P Ch. 27 - Prob. 28P Ch. 27 - Prob. 29P Ch. 27 - Prob. 30P Ch. 27 - Prob. 31P Ch. 27 - Prob. 32P Ch. 27 - Prob. 33P Ch. 27 - Prob. 34P Ch. 27 - Prob. 35P Ch. 27 - Prob. 36P Ch. 27 - Prob. 37P Ch. 27 - Prob. 38P Ch. 27 - Prob. 39P Ch. 27 - Prob. 40P Ch. 27 - Prob. 41AP Ch. 27 - Prob. 42AP Ch. 27 - Prob. 43AP Ch. 27 - Prob. 44AP Ch. 27 - Prob. 45AP Ch. 27 - Prob. 46AP Ch. 27 - Prob. 47AP Ch. 27 - Prob. 48AP Ch. 27 - Prob. 49AP Ch. 27 - Prob. 50AP Ch. 27 - Prob. 51AP Ch. 27 - Prob. 52AP

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