Current
Definition: I=dQ/dt through some open surface. Units = C/s=Amperes=A. I does not have a direction, but by convention we take positive I to correspond to the direction that positive charge carriers would move. Of course, charge carriers are very o
P hysics 2 14, Q uiz 1 4 :30 P M, F ED. 5, 2010 T. Bolton
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I nstructions. Print and sign your name on this quiz and on your s cantron card. In doing so, you are acknowledging t he KSU Honor Code: "On my honor as a s tudent I have ne
Physics 214, Quiz 3
4:30 PM, March 26, 2010 T. Bolton Name
Instructions. Print and sign your name on this quiz and on your scantron card. In doing so, you are acknowledging the KSU Honor Code: On my honor as a student I have neither given nor received una
Physics 214, Quiz 2
4:30 PM, Feb. 26, 2010 T. Bolton Name
Instructions. Print and sign your name on this quiz and on your scantron card. In doing so, you are acknowledging the KSU Honor Code: On my honor as a student I have neither given nor received unau
17. (a) As far as the conservation laws are concerned, we may cancel a proton from each side of the reaction equation and write the reaction as p 0 + x. Since the proton and the lambda each have a spin angular momentum of 2, the spin angular momentum of x
19. (a) From Eq. 37-50, Q = mc 2 = ( m0 m p m )c 2 = 1115.6 MeV 938.3 MeV 139.6 MeV = 37.7 MeV. (b) We use the formula obtained in problem 44-9 (where it should be emphasized that E is used to mean the rest energy, not the total energy):
Kp = = 1 E E p 2
20. (a) The combination ddu has a total charge of 1 1 + 2 = 0 , and a total strangeness 3 3 3 of zero. From Table 44-3, we find it to be a neutron (n).
b
g
(b) For the combination uus, we have Q = + 2 + 2 1 = 1 and S = 0 + 0 1 = 1. This is the 3 3 3 + par
21. (a) We indicate the antiparticle nature of each quark with a bar over it. Thus, u u d represents an antiproton. (b) Similarly, u d d represents an antineutron.
22. (a) Using Table 44-3, we find q = 0 and S = 1 for this particle (also, B = 1, since that is true for all particles in that table). From Table 44-5, we see it must therefore contain a strange quark (which has charge 1/3), so the other two quarks must h
EPI Homework 10
Topics covered: Work and kinetic energy
All problems from the course textbook Physics For Scientists and Engineers, 6th Edition, Tipler
and Mosca unless stated otherwise.
Problems:
1) 6-27
2) 6-28
3) 6—39
4) 6-40
5) 6-68
6) A 6.0-kg block
16. The formula for Tz as it is usually written to include strange baryons is Tz = q (S + B)/2. Also, we interpret the symbol q in the Tz formula in terms of elementary charge units; this is how q is listed in Table 44-3. In terms of charge q as we have u
15. (a) See the solution to Problem 11 for the quantities to be considered, adding strangeness to the list. The lambda has a rest energy of 1115.6 MeV, the proton has a rest energy of 938.3 MeV, and the kaon has a rest energy of 493.7 MeV. The rest energy
13. For purposes of deducing the properties of the antineutron, one may cancel a proton from each side of the reaction and write the equivalent reaction as + p = n. Particle properties can be found in Tables 44-3 and 44-4. The pion and proton each have ch
12. (a) Referring to Tables 44-3 and 44-4, we find the strangeness of K0 is +1, while it is zero for both + and . Consequently, strangeness is not conserved in this decay; K 0 + + does not proceed via the strong interaction. (b) The strangeness of each si
11. (a) The conservation laws considered so far are associated with energy, momentum, angular momentum, charge, baryon number, and the three lepton numbers. The rest energy of the muon is 105.7 MeV, the rest energy of the electron is 0.511 MeV, and the re
10. (a) Noting that there are two positive pions created (so, in effect, its decay products are doubled), then we count up the electrons, positrons and neutrinos: 2e + + e + 5v + 4v. (b) The final products are all leptons, so the baryon number of A2+ is z
23. (a) Looking at the first three lines of Table 44-5, since the particle is a baryon, we determine that it must consist of three quarks. To obtain a strangeness of 2, two of them must be s quarks. Each of these has a charge of e/3, so the sum of their c
24. If we were to use regular rectangular axes, then this would appear as a right triangle. Using the sloping q axis as the problem suggests, it is similar to an upside down equilateral triangle as we show below.
The leftmost slanted line is for the 1 cha
EP1 Homework 8
Topics covered: Frictional force and spring force
All problems from the course textbook Physics For Scientists and Engineers, 6th Edition, Tipler
and Mosca unless stated otherwise.
Problems:
1) 5-33
2) 5-47
3) 5-52
4) 5-56
5) A block of mas
EP1 Homework 7
Topics covered: Newton's 3rd Law
All problems from the course textbook Physics For Scientists and Engineers, 6th Edition, Tipler
and Mosca unless stated otherwise.
Problems:
1) 4-47
2) 4-50
3) 4-67
4) 4-79
5)Two boxes of mass and connected
EPl Homework 6
Topics covered: Projectile motion
All problems from the course textbook Physics For Scientists and Engineers, 6th Edition, Tipler
and Mosca unless stated otherwise.
Problems:
1) 3-72
2) 3-73
3) 3-74
4) 3-75
5) 3-80
6) A projectile is ﬁred i
EP1 Homework 5
Topics covered: Gravity and Free Fall
All problems from the course textbook Physics For Scientists and Engineers, 6th Edition, Tipler
and Mosca unless stated otherwise.
Problems:
1) 2-69
2) 2-72
3) 2-79
4) 2-73
5) A ball launch straight up
EPl Homework 4
Topics covered: Newton's lst and 2nd Law
All problems from the course textbook Physics For Scientists and Engineers, 6th Edition, Tipler
and Mosca unless stated otherwise.
Problems:
1) 4-31
2) 4-35
3) 4-37
4) 4-57
5) 4-60
6) 4-65
Note: if y
EP1 Homework 3
Topics covered: velocity and acceleration
All problems from the course textbook Physics For Scientists and Engineers, 6th Edition, Tipler
and Mosca unless stated otherwise.
Problems:
1) 2-51 (Chapter 2, Problem 51)
2) 2-62
3) 2-65
4) 2-104
EP1 Homework 2
Topics covered: vectors and scalars
All problems from the course textbook Physics For Scientists and Engineers, 6th Edition, Tipler
and Mosca unless stated otherwise.
Problems:
1) 1-53 (Chapter 1, Problem 53)
2) 1-54
3) 1-55
4) 1-57
5) Let
EP1 Homework 1
Topics covered: the metric system and estimation
All problems from the course textbook Physics For Scientists and Engineers, 6th Edition, Tipler
and Mosca unless stated otherwise.
Problems:
1) 1-23 (Chapter 1, Problem 23)
2) 1-37
3) 1-38
4)
32. From Fgrav = GMm r 2 = mv 2 r we find M v 2 . Thus, the mass of the Sun would be
M s = vMercury vPluto
2
47.9 km s Ms = 4.74 km s
2
M s = 102 M s .