Conceptual Physics (12th Edition)
12th Edition
ISBN: 9780321909107
Author: Paul G. Hewitt
Publisher: PEARSON
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Chapter 23, Problem 23RCQ
To determine
Error in the statement that ‘source of electron in an electric circuit is battery or generator’.
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Required information
In a standard tensile test, a steel rod of 1 3 -in. diameter is subjected to a tension force of P = 21 kips. It is given that v=
0.30 and E= 29 × 106 psi.
1-in. diameter
P
P
-8 in.
Determine the change in diameter of the rod. (Round the final answer to six decimal places.)
The change in diameter of the rod is -
in.
5.84 ... If the coefficient of static friction between a table and a uni-
form, massive rope is μs, what fraction of the rope can hang over the
edge of the table without the rope sliding?
5.97 Block A, with weight Figure P5.97
3w, slides down an inclined plane
S of slope angle 36.9° at a constant
speed while plank B, with weight
w, rests on top of A. The plank
is attached by a cord to the wall
(Fig. P5.97). (a) Draw a diagram
of all the forces acting on block
A. (b) If the coefficient of kinetic
friction is the same between A and
B and between S and A, determine
its value.
B
36.9°
Chapter 23 Solutions
Conceptual Physics (12th Edition)
Ch. 23 - Prob. 1RCQCh. 23 - What condition is necessary for the sustained flow...Ch. 23 - Prob. 3RCQCh. 23 - Prob. 4RCQCh. 23 - Prob. 5RCQCh. 23 - Prob. 6RCQCh. 23 - Does electric charge flow across a circuit or...Ch. 23 - Prob. 8RCQCh. 23 - Does heating a metal wire increase or decrease its...Ch. 23 - Prob. 10RCQ
Ch. 23 - Prob. 11RCQCh. 23 - Prob. 12RCQCh. 23 - Prob. 13RCQCh. 23 - Prob. 14RCQCh. 23 - Prob. 15RCQCh. 23 - Prob. 16RCQCh. 23 - Prob. 17RCQCh. 23 - Prob. 18RCQCh. 23 - Prob. 19RCQCh. 23 - Prob. 20RCQCh. 23 - Prob. 21RCQCh. 23 - Prob. 22RCQCh. 23 - Prob. 23RCQCh. 23 - Prob. 24RCQCh. 23 - Prob. 25RCQCh. 23 - Prob. 26RCQCh. 23 - Prob. 27RCQCh. 23 - Prob. 28RCQCh. 23 - Prob. 29RCQCh. 23 - Prob. 30RCQCh. 23 - Prob. 31RCQCh. 23 - Prob. 32RCQCh. 23 - Prob. 33RCQCh. 23 - Prob. 34RCQCh. 23 - Prob. 35RCQCh. 23 - 36. Send a letter to Grandma and convince her that...Ch. 23 -
Ohm’s law:
37. A toaster has a heating element...Ch. 23 - Prob. 38RCQCh. 23 - 39. Calculate the current in the 240-Ώ filament of...Ch. 23 - Power
40. An electric toy draws 0.5 A from a...Ch. 23 - 41. Calculate the power of a hair dryer that...Ch. 23 - 42. What is the effect on the current in a wire if...Ch. 23 - Prob. 43RCQCh. 23 - 44. Rearrange the equation current = voltage/...Ch. 23 - Prob. 45RCQCh. 23 - 46. The total charge that an automobile battery...Ch. 23 - Prob. 47RCQCh. 23 - 48. A 4-W night-light is plugged into a 120-V...Ch. 23 - Prob. 49RCQCh. 23 - 50. Show in the preceding problem that 540 C of...Ch. 23 - Prob. 51RCQCh. 23 - 52. Rank the circuits illustrated according to the...Ch. 23 - 53. The bulbs shown are identical. An ammeter is...Ch. 23 - 54. All bulbs are identical in the circuits shown....Ch. 23 - 55. All bulbs are identical in the circuits shown....Ch. 23 - 56. Consider the three parts of the circuit: A,...Ch. 23 - Prob. 57RCQCh. 23 - Prob. 58RCQCh. 23 - Prob. 59RCQCh. 23 - 60. Consider a circuit with a main wire that...Ch. 23 - Prob. 61RCQCh. 23 - Prob. 62RCQCh. 23 - 63. The circuit within an incandescent lamp is...Ch. 23 - Prob. 64RCQCh. 23 - 65. How much energy is given to each coulomb of...Ch. 23 - Prob. 66RCQCh. 23 - Prob. 67RCQCh. 23 - 68. In which of the circuits shown does a current...Ch. 23 - Prob. 69RCQCh. 23 - 70. Something gets “used up” in a battery that...Ch. 23 - Prob. 71RCQCh. 23 - Prob. 72RCQCh. 23 - Prob. 73RCQCh. 23 - 74. Why is the current in an incandescent bulb...Ch. 23 - Prob. 75RCQCh. 23 - 76. Why are all compact fluorescent lamps more...Ch. 23 - Prob. 77RCQCh. 23 - Prob. 78RCQCh. 23 - Prob. 79RCQCh. 23 - 80. What causes electric shock: current or...Ch. 23 - Prob. 81RCQCh. 23 - Prob. 82RCQCh. 23 - Prob. 83RCQCh. 23 - 84. As more lines are opened at a fast-food...Ch. 23 - Prob. 85RCQCh. 23 - 86. Which is the same for a 10-Ω and a 20-Ω...Ch. 23 - Prob. 87RCQCh. 23 - The damaging effects of electric shock result from...Ch. 23 - Prob. 89RCQCh. 23 - Prob. 90RCQCh. 23 - 91. Which will do less damage: plugging a 110-V...Ch. 23 - Prob. 92RCQCh. 23 - Prob. 93RCQCh. 23 - Prob. 94RCQCh. 23 - Prob. 95RCQCh. 23 - Prob. 96RCQCh. 23 - 97. What happens to the brightness of bulb A when...Ch. 23 - Prob. 98RCQCh. 23 - 99. In the circuit shown, how do the brightness’s...Ch. 23 - Prob. 100RCQCh. 23 - Prob. 101RCQCh. 23 - Prob. 102RCQCh. 23 - 103. When a pair of identical resistors are...Ch. 23 - Prob. 104RCQCh. 23 - Prob. 105RCQCh. 23 - 106. Are these three circuits equivalent? Why or...Ch. 23 - Prob. 107RCQCh. 23 - Prob. 108RCQCh. 23 - Prob. 109RCQCh. 23 - Prob. 110RCQCh. 23 - To connect a pair of resistors so that their...Ch. 23 - Prob. 112RCQCh. 23 - Prob. 113RCQCh. 23 - Prob. 114RCQCh. 23 - Prob. 115RCQCh. 23 - Prob. 116RCQCh. 23 - Prob. 117RCQCh. 23 - Prob. 118RCQCh. 23 - Prob. 119RCQCh. 23 - (a) What single resistor would be equivalent to...Ch. 23 - 121. Three 6-ohm resistors are arranged in a...
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- 5.60 An adventurous archaeologist crosses between two rock cliffs by slowly going hand over hand along a rope stretched between the cliffs. He stops to rest at the middle of the rope (Fig. P5.60). The rope will break if the tension in it exceeds 2.50 X 104 N, and our hero's mass is 90.0 kg. (a) If the angle is 10.0°, what is the tension in the rope? (b) What is the smallest value can have if the rope is not to break? Figure P5.60arrow_forwardplease answer the question thanks!arrow_forward5.48 ⚫ A flat (unbanked) curve on a highway has a radius of 170.0 m. A car rounds the curve at a speed of 25.0 m/s. (a) What is the minimum coefficient of static friction that will prevent sliding? (b) Suppose that the highway is icy and the coefficient of static friction between the tires and pavement is only one-third of what you found in part (a). What should be the maximum speed of the car so that it can round the curve safely?arrow_forward
- 5.77 A block with mass m₁ is placed on an inclined plane with slope angle a and is connected to a hanging block with mass m₂ by a cord passing over a small, frictionless pulley (Fig. P5.74). The coef- ficient of static friction is μs, and the coefficient of kinetic friction is Mk. (a) Find the value of m₂ for which the block of mass m₁ moves up the plane at constant speed once it is set in motion. (b) Find the value of m2 for which the block of mass m₁ moves down the plane at constant speed once it is set in motion. (c) For what range of values of m₂ will the blocks remain at rest if they are released from rest?arrow_forward5.78 .. DATA BIO The Flying Leap of a Flea. High-speed motion pictures (3500 frames/second) of a jumping 210 μg flea yielded the data to plot the flea's acceleration as a function of time, as shown in Fig. P5.78. (See "The Flying Leap of the Flea," by M. Rothschild et al., Scientific American, November 1973.) This flea was about 2 mm long and jumped at a nearly vertical takeoff angle. Using the graph, (a) find the initial net external force on the flea. How does it compare to the flea's weight? (b) Find the maximum net external force on this jump- ing flea. When does this maximum force occur? (c) Use the graph to find the flea's maximum speed. Figure P5.78 150 a/g 100 50 1.0 1.5 0.5 Time (ms)arrow_forward5.4 ⚫ BIO Injuries to the Spinal Column. In the treatment of spine injuries, it is often necessary to provide tension along the spi- nal column to stretch the backbone. One device for doing this is the Stryker frame (Fig. E5.4a, next page). A weight W is attached to the patient (sometimes around a neck collar, Fig. E5.4b), and fric- tion between the person's body and the bed prevents sliding. (a) If the coefficient of static friction between a 78.5 kg patient's body and the bed is 0.75, what is the maximum traction force along the spi- nal column that W can provide without causing the patient to slide? (b) Under the conditions of maximum traction, what is the tension in each cable attached to the neck collar? Figure E5.4 (a) (b) W 65° 65°arrow_forward
- The correct answers are a) 367 hours, b) 7.42*10^9 Bq, c) 1.10*10^10 Bq, and d) 7.42*10^9 Bq. Yes I am positve they are correct. Please dont make any math errors to force it to fit. Please dont act like other solutiosn where you vaugley state soemthing and then go thus, *correct answer*. I really want to learn how to properly solve this please.arrow_forwardI. How many significant figures are in the following: 1. 493 = 3 2. .0005 = | 3. 1,000,101 4. 5.00 5. 2.1 × 106 6. 1,000 7. 52.098 8. 0.00008550 9. 21 10.1nx=8.817arrow_forwardplease solve and answer the question correctly please. Thank you!! (Hint in second photo)arrow_forward
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