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An inductor of 491 mH with a resistance of 47 ? is connected to a power supply with a maximum voltage of 135 V and a frequency of 77 Hz.
Find the current in the circuit.
Find the phase angle between the current and applied voltage.
Find the power loss in the inductor.
A penny of mass 3.10 g rests on a small 22.40 g block supported by a spinning disk of radius 11 cm. The coefficients of friction between block and disk are 0.715 (static) and 0.64 (kinetic) while those for the penny and block are 0.564 (static) an..
The runner turns around and runs in the -x direction at the same speed. Now what is the kinetic energy of the runner
q1. a skater holds her arms outstretched as she spins at 180 rpm. what is the speed of her hands if they are 150 cm
One mole of an ideal gas initially has a temperature of 52.5°C. If the pressure is held constant and the volume is doubled, what will be the final temperature of the gas
A car carrying a 77-kg test dummy crashed into a wall at 27m/s and is brought to rest in 0.1 s. demonstrate that the average force exerted by the seat belt on the dummy is 18,760N.
A photon with an initial wavelength of 1.380×10-11 m Compton scatters from an electron which is initially at rest. What is the energy of the outgoing photon
The stirrer is used to stir the mixture until it reaches its last equilibrium temperature of 32°C. Analyse the mass of the aluminum cup.
The length of a simple pendulum is 0.87 m and the mass of the particle (the "bob") at the end of the cable is 0.21 kg. What is the angular frequency of the motion
A ball of mass m=0.5 kg and radius r=0.02m is pushed against a spring of force constant 200N/m, What is the speed of the rolling ball when it leaves the spring
A lead bullet initially at 26.4oC melts just upon striking a target. calculate the speed of the bullet upon impact
A circular loop of radius 24.9 cm is located in the plane of the paper inside a homogeneous magnetic field of 0.280 T pointing into the paper. Calculate the current induced in the loop during that time
What was the final temperature of the coins. What is the train's acceleration after its wheel begins to stick.
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