
Concept explainers
(a)
The mass of the particles on the left side.
(a)

Answer to Problem 38P
Explanation of Solution
The mass of the particles on the left side is,
mi=m(H11)+m(L73i)
- m(H11) is the mass of H11.
- m(L73i) is the mass of L73i.
Substitute 1.007825 u for m(H11) and 7.016004 u for m(L73i).
mi=(1.007825 u)+(7.016004 u)=8.023829 u
Conclusion:
The mass of the particles on the left side is 8.023829 u.
(b)
The mass of the particles on the right side.
(b)

Answer to Problem 38P
Explanation of Solution
The mass of the particles on the left side is,
mf=m(B71e)+m(n10)
- m(B71e) is the mass of B71e.
- m(n10) is the mass of n10.
Substitute 7.016929 u for m(B71e) and 1.008665 u for m(n10).
mf=(7.016929 u)+(1.008665 u)=8.025594 u
Conclusion:
The mass of the particles on the right side is 8.025594 u.
(c)
The Q-value.
(c)

Answer to Problem 38P
Explanation of Solution
Formula to calculate the Q-value is,
Q=(mi−mf)c2
- c is the
speed of light .
Substitute 8.023829 u for mi, 8.025594 u for mf and 931.5 MeV/u for c2.
Q=[(8.023829 u)−(8.025594 u)](931.5 MeV/u)=−1.64 MeV
Conclusion:
The Q-value is −1.64 MeV.
(d)
The expression describing the law of conservation of momentum.
(d)

Answer to Problem 38P
Explanation of Solution
Formula to calculate the initial momentum is,
pi=mpv (I)
Formula to calculate the final momentum is,
pf=mBeV+mnV=(mBe+mn)V (II)
From Law of conservation of momentum,
pi=pf (III)
Substitute Equations (I) and (II) in (III).
mpv=(mBe+mn)V
Conclusion:
The expression describing the law of conservation of momentum is mpv=(mBe+mn)V
(e)
The expression relating the kinetic energies of the particles.
(e)

Answer to Problem 38P
The expression relating the kinetic energies of the particles is 12mpv2+Q=12(mBe+mn)V2
Explanation of Solution
Formula to calculate the initial kinetic energy is,
KEi=12mpv2+Q (IV)
Formula to calculate the final kinetic energy is,
KEf=12(mBe+mn)V2 (V)
From Law of conservation of energy,
KEi=KEf (VI)
Substitute Equations (IV) and (V) in (VI).
12mpv2+Q=12(mBe+mn)V2
Conclusion:
The expression relating the kinetic energies of the particles is 12mpv2+Q=12(mBe+mn)V2
(f)
The minimum kinetic energy of the proton.
(f)

Answer to Problem 38P
Explanation of Solution
Formula to calculate the minimum kinetic energy of the proton is,
KEmin=(1+m(H11)m(L73i))|Q|
Substitute 1.007825 u for m(H11), 7.016004 u for m(L73i) and −1.64 MeV for Q.
KEmin=(1+1.007825 u7.016004 u)|−1.64 MeV|=(1+1.007825 u7.016004 u)(1.64 MeV)=1.88 MeV
Conclusion:
The minimum kinetic energy of the proton is 1.88 MeV
Want to see more full solutions like this?
Chapter 29 Solutions
EBK COLLEGE PHYSICS, VOLUME 2
- A man slides two boxes up a slope. The two boxes A and B have a mass of 75 kg and 50 kg, respectively. (a) Draw the free body diagram (FBD) of the two crates. (b) Determine the tension in the cable that the man must exert to cause imminent movement from rest of the two boxes. Static friction coefficient USA = 0.25 HSB = 0.35 Kinetic friction coefficient HkA = 0.20 HkB = 0.25 M₁ = 75 kg MB = 50 kg P 35° Figure 3 B 200arrow_forwardA golf ball is struck with a velocity of 20 m/s at point A as shown below (Figure 4). (a) Determine the distance "d" and the time of flight from A to B; (b) Determine the magnitude and the direction of the speed at which the ball strikes the ground at B. 10° V₁ = 20m/s 35º Figure 4 d Barrow_forwardThe rectangular loop of wire shown in the figure (Figure 1) has a mass of 0.18 g per centimeter of length and is pivoted about side ab on a frictionless axis. The current in the wire is 8.5 A in the direction shown. Find the magnitude of the magnetic field parallel to the y-axis that will cause the loop to swing up until its plane makes an angle of 30.0 ∘ with the yz-plane. Find the direction of the magnetic field parallel to the y-axis that will cause the loop to swing up until its plane makes an angle of 30.0 ∘ with the yz-plane.arrow_forward
- A particle with a charge of − 5.20 nC is moving in a uniform magnetic field of (B→=−( 1.22 T )k^. The magnetic force on the particle is measured to be (F→=−( 3.50×10−7 N )i^+( 7.60×10−7 N )j^. Calculate the y and z component of the velocity of the particle.arrow_forwardneed answer asap please thank youarrow_forward3. a. Determine the potential difference between points A and B. b. Why does point A have a higher potential energy? Q = +1.0 C 3.2 cm 4.8 cm Aarrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningModern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage LearningAn Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage Learning
- College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStaxCollege PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College





