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Problem:
A small immersion heater is rated at 375W. The specific heat of water is 4186 J/kg oC, Estimate how long it will take to heat a cup of soup
An object of mass 6.0 kg is thrown vertically upwards from ground level with an initial speed of 20 m/s. What is its speed when it reaches one-half of its maximum height?
A RC helicopter is placed on a circular platform that can rotate freely about its center axis. Explain with a diagram what forces are acting on the helicopter as it is sitting on the platform.
A solenoid is to have an inductance of .272 mH, a cross-sectional area of 6.15x10^-4, and a length of 33.3 cm. How many turns per unit length should it have
A two-stage rocket moves in space at a constant velocity of+4640 m/s. The two stages are then separated by a small explosivecharge placed between them. Immediately after the explosion thevelocity of the 1230-kg upper stage is +5700 m/s. What is theve..
Suppose the region outside the chamber is evacuated and the total mass of the block and the movable piston is150 kg. What is the distance s through which the piston rises
Two balls collide in a head on, completely elastic collision. Ball #1 is .50 kg and is traveling with a speed of 4.3m/s in the positive x direction. What will the speed and direction of each ball be after the collision
A 3.0 kg particle with velocity v = (5.0 m/s) - (6.0 m/s) is at x = 3.0 m, y = 8.0 m. It is pulled by a 7.0 N force in the negative x direction. What torque about the origin acts on the particle
A town is planning on using the water flowing through a river at a rate of 5.0 x 106 kg/s to carry away heat from a new power plant, What is the maximum power this plant can produce
What is the tangential velocity of a satellite in a circular orbit 300km above the surface of the Earth, How long does the satellite take to complete one orbit
A large fish hangs from a spring balance supported from the roof of an elevator. What will the balance read if the elevator cable breaks
A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.00 rad/sec2 acquires an angular velocity of 5.00 rad/sec.
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