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A series RL circuit includes a 6.55-V battery, a resistance of R = 0.455 ohms, and an inductance of L = 2.25 H. What is the induced emf 1.08 s after the circuit has been closed?
Answer _________ Volts
A king orders a gold crown having a mass of 0.68 kg. When it arrives from the metalsmith, the volume of the crown is found to be 145 cm^3
A negative charge of -0.55 uC exerts an upward 0.200N force on an unknown charge 0.300m, What is the unknown charge (magnitude and sign)
A 25 ohm resistor at steady state draws a current of 10 amperes. Its temperature is 310 K; the temperature of the surroundings is 300 K.. what is the total rate of entropy generation?
A cart (821.7g) connected to a hanging mass (240g) is free to move on an incline plane with an angle of 15.3 degrees. Determine which way the hanging mass will move
A block of mass m1 = 3.15 kg on a frictionless plane inclined at angle = 32.5° is connected by a cord over a mass less, frictionless pulley to a second block of mass m2 = 2.45 kg hanging vertically (see the figure).
A pitcher claims he can throw a 0.145-kg baseball with as much momentum as a 3.5-g bullet moving with a speed of 1.25 x 103 m/s. What must the baseball's speed be if the pitcher's claim is valid
What is the speed of the block while the spring is till now compressed by xf=0.14m.
On an airplane's takeoff, the combined action of the air around the engines and wings of an airplane exerts an 8020-N force on the plane, focussed upward at the angle of 55.0° above the horizontal. The plane rises with constant velocity in the vertic..
two shortwave radio antennas broadcast identical in-phase signals at the same frequency. the transmitters are 176.0 m
A 4.0 kg block rests at the edge of a disk with a mass of 5.0 kg and a radius of 30 cm. A 2 N force is applied to the edge of the disk. What is the angular acceleration of the disk and block
You launch a 5kg ball from a height of 1 meter. Find the speed of the ball and its kinetic energy at the top of its trajectory, find the velocity and speed of the ball when it reaches the ground
A 8500 kg boxcar traveling at 16.8 m/s strikes a second boxcar at rest. What is the mass of the second car
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