EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
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Chapter 42, Problem 9P
To determine
Find the Q value for the capture reaction.
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(a) Determine the product of the reaction 7 Li + 4He → ? + n.
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(b) What is the Q value of the reaction? (The atomic mass of Li is 7.016004 u, the atomic mass of He is 4.002603 u, the atomic mass of a neutron is 1.008665 u, and the atomic mass of the
unknown product is 10.012937 u.)
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2
MeV
can you convert GPE into KE? if yes how ?
15. A star initially has 1040
deuterons. It produces energy via the
3
4
processes, H² +₁H² →→ ₁H³ + p and, H² + ₁H³ → ₂Heª + n.
1
the
If the average power radiated by the star is 10¹6 W,
deuteron supply of the star is exhausted in a time of the order
of
(a) 106 S
(c) 10 ¹² s
(b) 108 s
(d) 10¹6 s
The mass of the nuclei are as follows
M(H²) = 2.014 amu; M(n) = 1.008 amu;
M(p) = 1.007 amu; M(He* )= 4.001 amu.
4
Chapter 42 Solutions
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- a) For each of the following nuclear equations, state the atomic number, mass number, and symbol X of the missing reactants or products. i. He +Au → 4X +?H 197 A = Z = X: ii. in +Ba → 4X +y 56 A = Z = X: iii. 137CS Ba +4X+7 55 56 A = Z = X: iv. in +X → P +H A = Z = X: v. 210BI 83 81 A = Z = X: b) Choose the correct symbol for the missing particle in the following equation: Na - Ne +9e+ 11 10arrow_forwardCalculate the angle at which the (d, n) cross. section has a maximum for | = 0, 1, 2, 3 and 4. Assume a deuteron energy of 12.9 MeV. Use R = 1.2 fm.arrow_forwardA 0.2-g sample of Kr gas, which decays into stable Rb, is accidentally broken and escapes inside a sealed warehouse measuring 40 x 30 × 20 m. What is the specific activity of the air inside?arrow_forward
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