Use the worked example above to help you solve this problem. (a) Compare the de Broglie wavelength for an electron (me = 9.11 10-31 kg) moving at a speed of 1.11 107 m/s with that of a baseball of mass 0.145 kg pitched at 44.7 m/s. ?e = m ?b = m (b) Compare these wavelengths with that of an electron traveling at 0.999c. m
Use the worked example above to help you solve this problem. (a) Compare the de Broglie wavelength for an electron (me = 9.11 10-31 kg) moving at a speed of 1.11 107 m/s with that of a baseball of mass 0.145 kg pitched at 44.7 m/s. ?e = m ?b = m (b) Compare these wavelengths with that of an electron traveling at 0.999c. m
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Use the worked example above to help you solve this problem.
(a) Compare the de Broglie wavelength for an electron (me = 9.11 10-31 kg) moving at a speed of 1.11 107 m/s with that of a baseball of mass 0.145 kg pitched at 44.7 m/s.
(b) Compare these wavelengths with that of an electron traveling at 0.999c.
m
| ?e = | m |
| ?b = | m |
(b) Compare these wavelengths with that of an electron traveling at 0.999c.
m
EXERCISEHINTS: GETTING STARTED | I'M STUCK!
Find the de Broglie wavelength of a proton (mp = 1.67 10-27 kg) moving with a speed of 1.11 107 m/s.
?p = m
?p = m
Transcribed Image Text:PRACTICE IT
Use the worked example above to help you solve this problem.
(a) Compare the de Broglie wavelength for an electron (m
of 1.11 x 107 m/s with that of a baseball of mass 0.145 kg pitched at 44.7 m/s.
de
26
=
=
m
m
= 9.11 x 10-31 kg) moving at a speed
m
(b) Compare these wavelengths with that of an electron traveling at 0.999c.
m
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EXERCISE
HINTS:
GETTING STARTED | I'M STUCK!
Find the de Broglie wavelength of a proton (m = 1.67 x 10-27 kg) moving with a speed of 1.11 x 107
m/s.
Ap
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