Essential University Physics (3rd Edition)
3rd Edition
ISBN: 9780134202709
Author: Richard Wolfson
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 32E
An alpha particle (4He) strikes a stationary gold nucleus (197Au) head-on. What fraction of the alpha’s kinetic energy is transferred to the gold? Assume a totally elastic collision.
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*25 SSM (a) A neutron of mass m, and kinetic energy K makes a
head-on elastic collision with a stationary atom of mass m. Show
that the fractional kinetic energy loss of the neutron is given by
ΔΚ
4m,m
(m + m,)
к
K
Find AK/K for each of the following acting as the stationary atom:
(b) hydrogen, (c) deuterium, (d) carbon, and (e) lead. (f) If
K = 1.00 MeV initially, how many such head-on collisions would it
take to reduce the neutron's kinetic energy to a thermal value
(0.025 eV) if the stationary atoms it collides with are deuterium, a
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are not head-on.)
Rutherford fired a beam of alpha particles (helium nuclei) at a thin sheet of gold. An alpha particle was observed to be deflected by 90.0°; its speed was unchanged. The alpha particles used in the experiment had an initial speed of 2.4 ✕ 107 m/s and a mass of 6.7 ✕ 10−27 kg.Assume the alpha particle collided with a gold nucleus that was initially at rest. Find the speed of the nucleus after the collision. ?m/s
Rutherford fired a beam of alpha particles (helium nuclei) at a thin sheet of gold. An alpha particle was observed to be deflected by 90.0°; its speed was unchanged. The alpha particles used in the experiment had an initial speed of 2.2 ✕ 107 m/s and a mass of
6.7 ✕ 10−27 kg.
Assume the alpha particle collided with a gold nucleus that was initially at rest. Find the speed of the nucleus after the collision.
Chapter 9 Solutions
Essential University Physics (3rd Edition)
Ch. 9.1 - Prob. 9.1GICh. 9.2 - A 500-g fireworks rocket is moving with velocity...Ch. 9.2 - Two skaters toss a basketball back and forth on...Ch. 9.3 - Which of the following systems has (1) zero...Ch. 9.4 - Which of the following qualifies as a collision?...Ch. 9.5 - Which of the following collisions qualify as...Ch. 9.6 - One ball is at rest on a level floor. A second...Ch. 9 - Roughly where is your center of mass when youre...Ch. 9 - Prob. 2FTDCh. 9 - Prob. 3FTD
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