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Batman (mass=91 kg) jumps straight down from a bridge into a boat (mass=510 kg) in which a criminal is fleeing. The velocity of the boat is initially +11.0 m/s . What is the velocity of the boat after Batman lands in it?
q1. a music fan at a swimming pool is listening to a radio on a diving platform. the radio is constant frequency when
a solenoid of length 6.3 cm and diameter 0.77 cm is wound with 178 turns per cm. the current is decreasing at a rate of
A wagon is coasting at a speed vA along a straight and level road. When thirty-four percent of the wagon's mass is thrown off the wagon, parallel to the ground and in the forward direction, the wagon is brought to a halt. If the direction in which th..
A bob (small ball) is attached to the lower end of a cord that is attached to the cieling and moves in a horizontal circle at a constant speed. (The cord sweeps out a cone as the bob rotates.) The bob has a mass of 0.040 kg, the cord has a length ..
carries a 10 A current with a uniform current density. Use Ampere's Law to determine the magnetic field strength at the axis of the wire
A 9.0 V battery moves 20mC of charge through a circuit running from its positive terminal to its negative terminal. How much energy was delivered to the circuit?
The population of a community was 12500 in 1985 and 36000 in 2000. Find the time it takes the population of this town to double
There is strong evidence that the center of the Milky Way galaxy contains a giant black hole with a mass of perhaps one million Suns. find the maximum radius of a million-solar-mass black hole
Cylinder 2 is attached to the ceiling and rotates without friction, and cylinder 1 hangs vertically. If M1 = M2, when the cylinders are released from rest and the tape unwinds off both cylinders, what is the acceleration of the center-of-mass of c..
In a large centrifuge used for training pilots and astronauts, asmall chamber is fixed at the end of a rigid arm that rotatesin a horizontal circle. A trainee riding in the chamber of acentrifuge rotating with a constant angular speed of 2.5 rad/s..
A solenoid is made by wrapping a wire so that it makes a solenoid (coil) having 500 turns of diameter 8.00 cm and length 40.0 cm. Find the inductance of this solenoid
In a mass spectrometer, a singly ionized 24Mg ion has a mass equal to 3.983 10-26 kg and is accelerated through a 2.80-kV potential difference. Find the radius of curvature of the ion's orbit
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