Physics
10th Edition
ISBN: 9781118486894
Author: David Young, Shane Stadler
Publisher: WILEY
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Chapter 20, Problem 57P
To determine
The resistance of the lamp.
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Define operational amplifier
A bungee jumper plans to bungee jump from a bridge 64.0 m above the ground. He plans to use a uniform elastic cord, tied to a harness around his body, to stop his fall at a point 6.00 m above the water. Model his body as a particle and the cord as having negligible mass and obeying
Hooke's law. In a preliminary test he finds that when hanging at rest from a 5.00 m length of the cord, his body weight stretches it by 1.55 m. He will drop from rest at the point where the top end of a longer section of the cord is attached to the bridge.
(a) What length of cord should he use?
Use subscripts 1 and 2 respectively to represent the 5.00 m test length and the actual jump length. Use Hooke's law F = KAL and the fact that the change in length AL for a given force is proportional the length L (AL = CL), to determine the force constant for the test case and for the
jump case. Use conservation of mechanical energy to determine the length of the rope. m
(b) What maximum acceleration will he…
9 V
300 Ω
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100 Ω 200 Ω
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400 Ω
500 Ω
www
600 Ω
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700 Ω
Figure 1: Circuit symbols for a variety of useful circuit elements
Problem 04.07 (17 points). Answer the following questions related to the figure below.
A What is the equivalent resistance of the network of resistors in the circuit below?
B If the battery has an EMF of 9V and is considered as an ideal batter (internal resistance
is zero), how much current flows through it in this circuit?
C If the 9V EMF battery has an internal resistance of 2 2, would this current be larger
or smaller? By how much?
D In the ideal battery case, calculate the current through and the voltage across each
resistor in the circuit.
Chapter 20 Solutions
Physics
Ch. 20.2 - Prob. 1CYUCh. 20.2 - Prob. 2CYUCh. 20.3 - Prob. 3CYUCh. 20.3 - Prob. 4CYUCh. 20.3 - Prob. 5CYUCh. 20.4 - Prob. 6CYUCh. 20.4 - Prob. 7CYUCh. 20.4 - Prob. 8CYUCh. 20.5 - Prob. 9CYUCh. 20.5 - Prob. 10CYU
Ch. 20.5 - Prob. 11CYUCh. 20.6 - 12. The power rating of a 1000-W heater specifies...Ch. 20.7 - 13. A car has two headlights, and their power is...Ch. 20.7 - Prob. 14CYUCh. 20.8 - 15. In one of the circuits in the drawing, none of...Ch. 20.8 - Prob. 16CYUCh. 20.8 - Prob. 17CYUCh. 20.10 - Prob. 18CYUCh. 20.11 - Prob. 19CYUCh. 20.11 - Prob. 20CYUCh. 20.13 - Prob. 21CYUCh. 20.13 - Prob. 22CYUCh. 20 - Prob. 1FCCh. 20 - Prob. 2FCCh. 20 - Prob. 3FCCh. 20 - Prob. 5FCCh. 20 - Prob. 7FCCh. 20 - Prob. 8FCCh. 20 - Prob. 10FCCh. 20 - Prob. 12FCCh. 20 - Prob. 13FCCh. 20 - Prob. 15FCCh. 20 - Prob. 18FCCh. 20 - Prob. 20FCCh. 20 - Prob. 1PCh. 20 - Prob. 2PCh. 20 - Prob. 3PCh. 20 - Prob. 4PCh. 20 - Prob. 5PCh. 20 - Prob. 6PCh. 20 - Prob. 7PCh. 20 - Prob. 8PCh. 20 - Prob. 9PCh. 20 - Prob. 10PCh. 20 - Prob. 11PCh. 20 - Prob. 12PCh. 20 - Prob. 13PCh. 20 - Prob. 14PCh. 20 - Prob. 15PCh. 20 - Prob. 16PCh. 20 - Prob. 17PCh. 20 - Prob. 18PCh. 20 - Prob. 19PCh. 20 - Prob. 20PCh. 20 - Prob. 21PCh. 20 - Prob. 22PCh. 20 - Prob. 23PCh. 20 - 24. A blow-dryer and a vacuum cleaner each operate...Ch. 20 - 25. There are approximately 110 million households...Ch. 20 - Prob. 26PCh. 20 - Prob. 27PCh. 20 - Prob. 28PCh. 20 - Prob. 29PCh. 20 - *30. A piece of Nichrome wire has a radius of 6.5...Ch. 20 - Prob. 31PCh. 20 - Prob. 32PCh. 20 - 33. The rms current in a copy machine is 6.50 A,...Ch. 20 - Prob. 34PCh. 20 - Prob. 35PCh. 20 - Prob. 36PCh. 20 - Prob. 37PCh. 20 - Prob. 38PCh. 20 - Prob. 39PCh. 20 - Prob. 40PCh. 20 - Prob. 41PCh. 20 - Prob. 42PCh. 20 - Prob. 43PCh. 20 - Prob. 44PCh. 20 - Prob. 45PCh. 20 - Prob. 46PCh. 20 - Prob. 47PCh. 20 - Prob. 48PCh. 20 - Prob. 49PCh. 20 - Prob. 50PCh. 20 - Prob. 51PCh. 20 - Prob. 52PCh. 20 - Prob. 53PCh. 20 - Prob. 54PCh. 20 - Prob. 55PCh. 20 - Prob. 56PCh. 20 - Prob. 57PCh. 20 - Prob. 58PCh. 20 - Prob. 59PCh. 20 - Prob. 60PCh. 20 - Prob. 61PCh. 20 - Prob. 62PCh. 20 - 63. A 14-? coffee maker and a 16-? frying pan are...Ch. 20 - Prob. 64PCh. 20 - Prob. 65PCh. 20 - 66. The circuit in the drawing contains three...Ch. 20 - Prob. 67PCh. 20 - Prob. 68PCh. 20 - Prob. 69PCh. 20 - Prob. 70PCh. 20 - Prob. 71PCh. 20 - Prob. 72PCh. 20 - Prob. 73PCh. 20 - Prob. 74PCh. 20 - Prob. 75PCh. 20 - Prob. 76PCh. 20 - Prob. 77PCh. 20 - Prob. 78PCh. 20 - Prob. 79PCh. 20 - Prob. 80PCh. 20 - Prob. 81PCh. 20 - 83. Determine the current (both magnitude and...Ch. 20 - *84. Determine the voltage across the 5.0-?...Ch. 20 - Prob. 85PCh. 20 - Prob. 86PCh. 20 - Prob. 87PCh. 20 - Prob. 88PCh. 20 - Prob. 89PCh. 20 - Prob. 90PCh. 20 - Prob. 91PCh. 20 - Prob. 92PCh. 20 - Prob. 93PCh. 20 - Prob. 94PCh. 20 - Prob. 95PCh. 20 - Prob. 96PCh. 20 - Prob. 97PCh. 20 - Prob. 98PCh. 20 - Prob. 99PCh. 20 - Prob. 100PCh. 20 - Prob. 101PCh. 20 - Prob. 102PCh. 20 - Prob. 103PCh. 20 - Prob. 104PCh. 20 - Prob. 105PCh. 20 - Prob. 106PCh. 20 - Prob. 107PCh. 20 - Prob. 108APCh. 20 - Prob. 109APCh. 20 - Prob. 110APCh. 20 - Prob. 111APCh. 20 - Prob. 112APCh. 20 - Prob. 113APCh. 20 - Prob. 114APCh. 20 - Prob. 115APCh. 20 - Prob. 116APCh. 20 - *117. The current in the 8.00-? resistor in the...Ch. 20 - Prob. 118APCh. 20 - Prob. 119APCh. 20 - Prob. 120APCh. 20 - Prob. 121APCh. 20 - Prob. 122APCh. 20 - Prob. 123APCh. 20 - Prob. 124APCh. 20 - Series and parallel wiring are two common ways in...Ch. 20 - Prob. 126CCP
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