Modern Physics for Scientists and Engineers
4th Edition
ISBN: 9781133103721
Author: Stephen T. Thornton, Andrew Rex
Publisher: Cengage Learning
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Question
Chapter 4, Problem 15P
(a)
To determine
The speed of the proton according to the assumption made for planetary model.
(b)
To determine
The total mechanical energy.
(c)
To determine
The mistakes in this model.
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Make the (incorrect) assumption that the nucleus is composed of electrons and that the protons are outside.
(a) If the size of an atom were about 10-10 m, what would be the speed of a proton?
(b) What would be the total mechanical energy?
(c) What is wrong with this model?
Helpful information: (1) An alpha particle is a helium nucleus, (2)
e = 1.6 × 10-¹⁹ C, (3) k = 9.0 × 10⁹ Nm² C-2, (4) 1nm = 1 × 10-⁹ m
1-An alpha particle lies on the x-axis, a distance of 1.0 nanometer from a
proton (in this set-up, the alpha particle is at the origin while the proton is in the
positive direction). Which of the following choices below represents the
magnitude of the electric force on the alpha particle?
(a) 2.3 × 10-10 N
(b) 4.6 × 10-¹0 N
(c) 2.3 × 10-19 N
(d) 4.6 × 10-19 N
eplacing the voltage sou
the following inst
choices below
time != 1.00 37
instantaneous current
An iron nail has a mass of 15.0 g. What is
the energy (in Joules) that would be
required to break all the iron nuclei into
their constituent protons and neutrons?
Ignore the energy that binds the electrons
to the nucleus and the energy that binds
one atom to another in the structure of the
metal. For simplicity, assume that all the
iron nuclei are
56 Fe
(atomic mass = 55.934 939 u).
Chapter 4 Solutions
Modern Physics for Scientists and Engineers
Ch. 4 - Prob. 1QCh. 4 - Prob. 2QCh. 4 - Prob. 3QCh. 4 - Prob. 4QCh. 4 - Prob. 5QCh. 4 - Prob. 6QCh. 4 - Prob. 7QCh. 4 - Prob. 8QCh. 4 - Prob. 9QCh. 4 - Prob. 10Q
Ch. 4 - Prob. 11QCh. 4 - Prob. 12QCh. 4 - Prob. 13QCh. 4 - Prob. 2PCh. 4 - Prob. 3PCh. 4 - Prob. 4PCh. 4 - Prob. 5PCh. 4 - Prob. 6PCh. 4 - Prob. 7PCh. 4 - What fraction of 5-MeV α particles will be...Ch. 4 - Prob. 9PCh. 4 - Prob. 10PCh. 4 - Prob. 11PCh. 4 - Prob. 12PCh. 4 - Prob. 13PCh. 4 - Prob. 14PCh. 4 - Prob. 15PCh. 4 - Prob. 16PCh. 4 - Prob. 17PCh. 4 - Prob. 18PCh. 4 - Prob. 19PCh. 4 - Prob. 20PCh. 4 - Prob. 21PCh. 4 - Prob. 22PCh. 4 - Prob. 23PCh. 4 - Prob. 24PCh. 4 - Prob. 25PCh. 4 - Prob. 26PCh. 4 - Prob. 27PCh. 4 - Prob. 28PCh. 4 - Prob. 29PCh. 4 - Prob. 30PCh. 4 - Prob. 31PCh. 4 - Prob. 32PCh. 4 - Prob. 33PCh. 4 - Prob. 34PCh. 4 - Prob. 35PCh. 4 - Prob. 36PCh. 4 - Prob. 37PCh. 4 - Prob. 38PCh. 4 - Prob. 39PCh. 4 - Prob. 40PCh. 4 - Prob. 41PCh. 4 - Prob. 42PCh. 4 - Prob. 43PCh. 4 - Prob. 44PCh. 4 - Prob. 45PCh. 4 - Prob. 46PCh. 4 - Prob. 47PCh. 4 - Prob. 48PCh. 4 - Prob. 49PCh. 4 - Prob. 50PCh. 4 - Prob. 51PCh. 4 - Prob. 52PCh. 4 - Prob. 54PCh. 4 - Prob. 55PCh. 4 - Prob. 56PCh. 4 - Prob. 57PCh. 4 - Prob. 59PCh. 4 - Prob. 60PCh. 4 - Prob. 61P
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