Physics, 02.10.2019 04:30 cjacobs77311
12. an electric motor is plugged into a standard wall socket and is run- ning at normal speed. suddenly, some dirt prevents the shaft of the mo- tor from turning quite so rapidly. what happens to the back emf of the motor, and what happens to the current that the motor draws from the wall socket? (a) the back emf increases, and the current drawn from the socket decreases. (b) the back emf increases, and the current drawn from the socket increases. (c) the back emf decreases, and the current drawn from the socket decreases. (d) the back emf decreases, and the current drawn from the socket increases.
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If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?
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A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?
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The doctor lands his tardis on a planet whose radius is 1.2x10^7m the acceleration due to gravity is 18m/s^2. what is the mass of the planet
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12. an electric motor is plugged into a standard wall socket and is run- ning at normal speed. sudde...
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