Applied Physics
11th Edition
ISBN: 9780132719865
Author: EWEN, Dale
Publisher: PEARSON
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Textbook Question
Chapter 19, Problem 8RP
What power is used by a heater with resistance 22.3 Ω and that draws a current of 7.65 A?
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A object of mass 3.00 kg is subject to a force FX that varies with position as in the figure below.
Fx (N)
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2
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x(m)
2 4 6 8 10 12 14 16 18 20
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(a) Find the work done by the force on the object as it moves from x = 0 to x = 5.00 m.
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(b) Find the work done by the force on the object as it moves from x
= 5.00 m to x = 11.0 m.
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(c) Find the work done by the force on the object as it moves from x = 11.0 m to x = 18.0 m.
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(d) If the object has a speed of 0.400 m/s at x = 0, find its speed at x = 5.00 m and its speed at x
speed at x = 5.00 m
speed at x = 18.0 m
m/s
m/s
=
18.0 m.
An EL NIÑO usually results in
Question 8Select one:
a.
less rainfall for Australia.
b.
warmer water in the western Pacific.
c.
all of the above.
d.
none of the above.
e.
more rainfall for South America.
A child's pogo stick (figure below) stores energy in a spring (k = 2.05 × 104 N/m). At position (✗₁ = -0.100 m), the spring compression is a maximum and the child is momentarily at rest. At position ® (x = 0), the spring is relaxed and the child is moving upward. At position
child is again momentarily at rest at the top of the jump. Assume that the combined mass of child and pogo stick is 20.0 kg.
B
A
(a) Calculate the total energy of the system if both potential energies are zero at x = 0.
(b) Determine X2-
m
(c) Calculate the speed of the child at x = 0.
m/s
(d) Determine the value of x for which the kinetic energy of the system is a maximum.
mm
(e) Obtain the child's maximum upward speed.
m/s
the
Chapter 19 Solutions
Applied Physics
Ch. 19.1 - What is the maximum voltage in an ac circuit in...Ch. 19.1 - The instantaneous voltage in an ac circuit at...Ch. 19.1 - If the maximum ac voltage on a line is 165 V, what...Ch. 19.1 - The maximum current in an ac circuit is 8.00 A....Ch. 19.1 - The instantaneous current in an ac circuit is 6.50...Ch. 19.1 - What is the maximum voltage in an ac circuit where...Ch. 19.1 - If the maximum ac voltage on a line is 145 V, what...Ch. 19.1 - The maximum current in an ac circuit is 5.75 A....Ch. 19.1 - Find the maximum current in an ac circuit where...Ch. 19.1 - The instantaneous voltage in an ac circuit at...
Ch. 19.1 - If Imax=4.59 A and 1=4.32 A, what is ?Ch. 19.1 - If 1=1.23 A and Imax=3.41 A, what is ?Ch. 19.1 - Find the effective value of an ac voltage whose...Ch. 19.1 - Find the maximum current in an ac circuit with an...Ch. 19.1 - Find the effective value of an ac voltage whose...Ch. 19.1 - Find the maximum current in an ac circuit with an...Ch. 19.1 - Find the effective value of a current in an ac...Ch. 19.1 - Find the effective value of an ac voltage whose...Ch. 19.1 - What is the maximum current in a circuit in which...Ch. 19.1 - Find the maximum current in a circuit in which an...Ch. 19.1 - A technician uses an oscilloscope to measure an...Ch. 19.1 - A technician uses a cathode ray oscilloscope to...Ch. 19.1 - A maximum voltage of 34.0 V is developed by an ac...Ch. 19.1 - A power plant generator develops a maximum voltage...Ch. 19.1 - A maximum current of 0.700 A flows through a...Ch. 19.1 - If the average power dissipated by an electric...Ch. 19.1 - If the average power dissipation by a hair dryer...Ch. 19.2 - Prob. 1PCh. 19.2 - What power is developed by a device that draws...Ch. 19.2 - Find the output power of a transformer with output...Ch. 19.2 - A heater operates on a 110-V line and is rated at...Ch. 19.2 - A heating element draws 6.00 A on a 220-V line....Ch. 19.2 - Prob. 6PCh. 19.2 - What power is used by a heater that has a...Ch. 19.2 - A heater operates on a 110-V line and is rated at...Ch. 19.2 - A 110- resistance coil draws a current of 5.00 A....Ch. 19.2 - What power is used by a heater with resistance...Ch. 19.2 - VP=30.0V VS=45.0V NS=15.0 turns Find NP.Ch. 19.2 - VP=250V NP=703turns NS=275 turns Find VS.Ch. 19.2 - IP=6.00 A IS=4.00 A VP=39.0 V Find VS.Ch. 19.2 - A step-up transformer on a 115-V line provides a...Ch. 19.2 - A step-down transformer on a 115-V line provides a...Ch. 19.2 - A transformer has 20.0 turns in the primary coil...Ch. 19.2 - If the current is 9.00 A in the primary coil in...Ch. 19.2 - If the voltage in the secondary coil of a...Ch. 19.2 - A neon sign has a transformer that changes...Ch. 19.2 - Prob. 20PCh. 19.2 - The current in the secondary coil of a transformer...Ch. 19.2 - A transformer steps down 6600 V to 120 V. (a) If...Ch. 19.2 - The primary coil of a step-down transformer has...Ch. 19.2 - A step-up transformer has 300 0 turns in the...Ch. 19.2 - A mechanic is testing a transformer that increases...Ch. 19.2 - Prob. 26PCh. 19.3 - Find the inductive reactance (in ohms) of each...Ch. 19.3 - Find the inductive reactance (in ohms) of each...Ch. 19.3 - Find the inductive reactance (in ohms) of each...Ch. 19.3 - Find the inductive reactance (in ohms) of each...Ch. 19.3 - What is the inductive reactance (in ohms) of a...Ch. 19.3 - Find the inductive reactance (in ohms) of a 655-H...Ch. 19.3 - Find the current (in amperes) in each inductive...Ch. 19.3 - Prob. 8PCh. 19.3 - Prob. 9PCh. 19.3 - Find the current (in amperes) in each inductive...Ch. 19.3 - Find the current (in amperes) in an inductive...Ch. 19.3 - Find the current (in amperes) in an inductive...Ch. 19.4 - For a circuit with R=200 ,L=10.0 mH, and f=1.25...Ch. 19.4 - For a circuit with R=12.0 ,L=1.00 mH, and f=900 Hz...Ch. 19.4 - For a circuit with R= 1.00 k, L=50.0 mH, and...Ch. 19.4 - For a circuit with resistance 2.00 k, inductance...Ch. 19.4 - For a circuit with resistance 300 , inductance...Ch. 19.5 - Find the capacitive reactance (in ohms) in each ac...Ch. 19.5 - Find the capacitive reactance (in ohms) in each ac...Ch. 19.5 - Find the capacitive reactance (in ohms) in each ac...Ch. 19.5 - Find the capacitive reactance (in ohms) in each ac...Ch. 19.5 - Find the capacitive reactance (in ohms) in each ac...Ch. 19.5 - Find the capacitive reactance of a 15.0 -F...Ch. 19.5 - Find the capacitive reactance of a 45.0 -F...Ch. 19.5 - Find the capacitive reactance of a 6.00-mF...Ch. 19.5 - Find the capacitive reactance of a 330 -F...Ch. 19.5 - Find the capacitive reactance of a 222 -F...Ch. 19.6 - For an ac circuit with R=1.00 k, C=1.00 F, E=100...Ch. 19.6 - For an ac circuit with R=375 , C=5.00 F, E=20.0V,...Ch. 19.6 - For an ac circuit with R=4.80 k, C=45.0 F,...Ch. 19.6 - For an ac circuit with resistance 145m,...Ch. 19.6 - For an ac circuit with resistance 10.0m,...Ch. 19.7 - Find the impedance and current in each ac circuit....Ch. 19.7 - R=225 , L=10.0 mH, C=0.200 F, f=1.00 kHz, E=15.0 V...Ch. 19.7 - Find the impedance and current in each ac circuit....Ch. 19.7 - R=1.00 k, L=0.700H, C=30.0 F, f=60.0 Hz, E=8.00 V...Ch. 19.7 - A circuit contains a 150 - resistance, a 35.0 -F...Ch. 19.7 - A circuit contains a 225- resistance, a 5.00 -F...Ch. 19.7 - A circuit contains a 175- resistance, a 4.50 -F...Ch. 19.7 - A circuit contains a 575- resistance, a 100 -F...Ch. 19.7 - A circuit contains a 450 - resistance, a 35.0 -F...Ch. 19.7 - A circuit contains a 375- resistance, a 500 -F...Ch. 19.8 - Find the resonant frequency in each ac circuit. 1....Ch. 19.8 - Find the resonant frequency in each ac circuit. 2....Ch. 19.8 - Find the resonant frequency in each ac circuit. 3....Ch. 19.8 - Find the resonant frequency in each ac circuit. 4....Ch. 19.8 - Find the resonant frequency in each ac circuit. 5....Ch. 19.8 - Find the resonant frequency of a circuit...Ch. 19.8 - Find the resonant frequency of a circuit...Ch. 19.8 - Find the resonant frequency of a circuit...Ch. 19.8 - Find the resonant frequency of a circuit...Ch. 19.8 - Find the resonant frequency of a circuit...Ch. 19.10 - Find the actual power produced by a generating...Ch. 19.10 - A generating station operates with a power factor...Ch. 19.10 - Find the apparent power produced by a generating...Ch. 19.10 - Find the apparent power produced by a generating...Ch. 19.10 - A generating station operates with a power factor...Ch. 19.10 - Find the apparent power produced by a generating...Ch. 19.10 - Find the actual power produced by a generating...Ch. 19.10 - A generating station operates with a power factor...Ch. 19.10 - Find the apparent power produced by a generating...Ch. 19.10 - Find the apparent power produced by a generating...Ch. 19.10 - Find the power factor of a generating station...Ch. 19.10 - Find the power factor of a generating station...Ch. 19 - Which of the following describes alternating...Ch. 19 - The voltage, e, and the current, i, in an...Ch. 19 - Which of the following affect the voltage induced...Ch. 19 - Which of the following contribute to the energy...Ch. 19 - Explain the difference between maximum current and...Ch. 19 - Explain the difference between maximum voltage and...Ch. 19 - Explain how power in an ac circuit is related to...Ch. 19 - Explain how power in an ac circuit is related to...Ch. 19 - If the number of turns in the secondary coil of a...Ch. 19 - Prob. 10RQCh. 19 - Discuss the importance of inductive reactance.Ch. 19 - How does the inductive reactance depend on...Ch. 19 - Prob. 13RQCh. 19 - Describe how energy is stored in a capacitor. How...Ch. 19 - Does the current lead or lag the voltage in a...Ch. 19 - Prob. 16RQCh. 19 - Discuss the condition that leads to resonance.Ch. 19 - What is the function of a diode in a circuit?Ch. 19 - Explain the difference between amplification and...Ch. 19 - Prob. 20RQCh. 19 - What is the maximum voltage in a circuit when the...Ch. 19 - If the maximum ac voltage on a line is 185 V, what...Ch. 19 - If the maximum ac voltage on a line is 175 V, what...Ch. 19 - What is the effective value of an ac voltage whose...Ch. 19 - What is the maximum current in a circuit with a...Ch. 19 - What power is developed by a device that draws...Ch. 19 - A heating element draws 4.50 A on a 110-V line....Ch. 19 - What power is used by a heater with resistance...Ch. 19 - A step-up transformer on a 115-V line provides a...Ch. 19 - An inductance of 48.0 mH is connected in series...Ch. 19 - A lamp with resistance 47.5 is connected in...Ch. 19 - (a) What current will flow in a 60.0-Hz ac series...Ch. 19 - A 21.6- resistor and a 38.5- F capacitor are...Ch. 19 - A circuit contains a 175- resistance, a 25.0 -F...Ch. 19 - A circuit contains a 115- resistance, a 35.0-F...Ch. 19 - (a) Find the resonant frequency of a circuit...Ch. 19 - (a) Find the resonant frequency of a circuit...Ch. 19 - Find the apparent power produced by a generating...Ch. 19 - A microwave oven is designed to draw 11.8 A of...Ch. 19 - Before converting alternating current to direct...Ch. 19 - Prob. 3ACCh. 19 - A 65.5-V, 60.0-Hz ac generator is connected to a...Ch. 19 - An AM radio tuner circuit has an inductance of 275...
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