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A long solenoid of length of 50 cm and an area 40 cm^2 has 320 turns. What is its self inductance ? If the current in the solenoid is 1.2 A what is the magnetic energy in the solenoid?
A 2.3 kg pendulum bob is pulled out such that its center of mass is 0.26 m above its lowest point and released. What is the gravitational potential energy of the pendulum
A 15 g bullet traveling at 485 m/s strikes a 0.9 kg block of wood that is balanced on a table edge 0.7 m above ground. If the bullet buries itself in the block, find out distance D at which the block hits the floor.
A horizontal vinyl record of radius 0.11 m rotates about a vertical axis through its center with an angular speed of 4.7 rad/s. What is the angular speed of the record immediately after the putty sticks to it
Explain by how much does the potential energy of a 23.0-kg child increase when the child climbs a normal staircase to the second floor?
If that ball had been released from the same height, but this time above the surface of the moon, how long would it have taken for the ball to hit the ground
A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars race in circles that are parallel to ground.
In experiment PH04a, for the resistors in parallel circuit configuration, if we added to the circuit two additional parallel legs with each leg having a single 50 Ohm resistor
Nichrome wire of cross-sectional radius 0.758 mm is to be used in winding a heating coil. find the length of wire you must use to wind the coil
q1. two people are carrying a uniform wooden board that is 3.00 m long and weighs 160 n. if one person applies an
Sodium ions (Na+) move at 0.843 m/s through a bloodstream in the arm of a person standing near a large magnet. what would be the magnetic force on the arm
A gyroscope slows from an initial rate of 32.0 rad/s at a rate of . How many revolutions does it make before stopping
A bullet of mass mb = 16 g is fired with a speed of 260 m/s at a target that is a sheet of metal (mass mt = 410 g). what is the angular velocity of the target plus bullet just after the bullet hits
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