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A 3 m rod is rotating with an oscillating angular momentum given by sin(2t). If a small rocket with oscillating linear momentum 10-cos(2t) is fired at t = 0, at what time will it need to strike the rod in order to be in equilibrium?
A positive point charge q1=2.5x10^-5C is fixed at the origin of corrdinates and a negative charge Q2=-5x10^-6C is fixed to the x axis at x=+2m
One end of a spring is attached to a 2.0-kg block. The other end of the spring is attached to a motorized top locomotive. How far down the table does the train go
A 55.0kg archer, standing on frictionless ice, shoots a 90.0g arrow at a speed of 50m/s. What is the recoil speed of the archer
An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has amass of 5.7×104 kg, and the force causes itsspeed to change from 7400 to 5900 m/s. (a) What isthe work done by the..
On a very warm day(30C) you are sitting at the shallow end of a swimming pool teaching a young child to swim. How long is the pool
A long solenoid consists of 1600 turns and has a length of 0.55 m.The current in the wire is 0.41 A. What is the magnitude of the magnetic field inside the solenoid?
With the engines off, a spaceship is coasting at a velocity of+230m/s through outer space. The ship carries rockets that aremounted in firing tubes, What is the velocity of the rocket
Julie drives 90mi to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 25mph and half the distance at 65 mph. How long does the return trip take
A person is walking 2 dogs. One dog pulls with a force of 10N at 30 degrees East of South. What is the magnitude and direction of the net force
A 15 ohm resistor is connected to the terminal of a 12 V battery, Sketch the circuit and Calculate the current in the circuit
A motorcycle has a constant speed of 25.0 m/s as it passes over the top of a hill whose radius of curvature is 118 m, Find the centripetal force that acts on the cycle
Imagine two Einstein solids in thermal contact. A has 300 atoms and B has 200 atoms, and qtotal = 100, what is the equilibrium macrostate
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