Physics, 27.05.2021 03:10 jessecabrown1
The current through a hair dryer connected to a 120 V source is 7.7 A. What is the power used
by the hair dryer?
a) 15.6 Watts
b) 924 Watts
C) 0.064 Watts
d) 59 Watts
Answers: 3
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What are the similarities & differences between a thermistor and a light dependent resistor in physics?
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Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.
Answers: 3
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Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47
Answers: 2
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A6.0-kilogram cart initially traveling at 4.0 meters per second east accelerates uniformly at 0.50 meter per second squared east for 3.0 seconds. what is the speed of the cart at the end of this 3.0 second interval? (1) 1.5 m/s (3) 3.0 m/s (2) 5.5 m/s (4) 7.0 m/s
Answers: 1
The current through a hair dryer connected to a 120 V source is 7.7 A. What is the power used
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