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a metal rod is forced to move with constant velocity along two parallel metal rails, connected with a strip of metal at one end. A magnetic field of magnitude B = 0.517 T points out of the page.
(a) If the rails are separated by 26.9 cm and the speed of the rod is 60.7 cm/s, what is the magnitude of the emf generated in volts?
(b) If the rod has a resistance of 22.8 ? and the rails and connector have negligible resistance, what is the current in amperes in the rod?
(c) At what rate is energy being transferred to thermal energy?
A snowball rolls down a 200 m long hill at an angle of 30o above the horizon. After leaving the hill it rolls toward a 1200 kg small car on an icy horizontal surface. What is the speed of the snowball at the bottom of the hill
At time a grinding wheel has an angular velocity of 22. It has a constant angular acceleration of 28.0 until a circuit breaker trips at time = 1.60 . From then on, the wheel turns by an angle of 438 as it coasts to a stop at constant angular decel..
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Solar energy originates in nuclear reaction, where mass energy changes the most in kinetic energy of photon. calculate how much mass, the Sun loses in second
A long straight wire carries a current that is increasing at the rate of one ampere per microsecond. find In which direction will current flow in each loop
Two charges Q1=+6mC and Q2=+4mC are separated horizontally on a straight line, find the magnitude of the electric force between these charges
Two water waves meet at the same point, one having a displacement above equilibrium of 60 cm, what is the resulting displacement above equilibrium
The temperature of the air in a resonator is 15°C, when a tuning fork vibrates at one end, calculate the frequency of the tuning fork
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