Page 1672 - College Physics For AP Courses
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1660
Answer Key
18
(a)
(b) Negative kinetic energy
(c) That the electrons would be knocked free. 20
, 22
24
26
(a) 0.0829 eV
(b) 121
(c) 1.24 MeV
(d)
28
(a)
(b)
30
(a) 2.69 (b) 0.371 32
(a)
(b) 997 km
34
36
181 km
38
(a)
(b) The wavelength of microwave photons is large, so the momentum they carry is very small.
40
(a) 13.3 μm
(b) eV
42
(a)
(b) 291 m/s
(c) electron , photon , ratio 44
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