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A particular spring stretches 20 cm when a 500g mass is hung from it. Suppose a 2.0kg mass is attached to the string and it is displaced 40 cm from equilibrium position and released. Find the speed of the mass when x = 10 cm.
A person who is properly restrained by an over-the-shoulder seatbelt has a good chance of surviving a car collision if the deceleration does not exceed 30 "g's"(1.00g = 9.80 m/s2).
A 2.0-kg block slides down a fixed, rough curved track. The block has a speed of 5.0 m/s after its height above a horizontal surface has decreased by 2.0 m. What is the change in mechanical energy of the block
A box of unknown mass is sliding with an initial speed vi = 5.90 m/s across a horizontal frictionless warehouse floor when it encounters a rough section of flooring d = 2.10 m long. determine the final speed of the box after sliding across the rou..
If gravitational forces alone prevent a spherical, rotating neutron star from disintegrating, find the minimum mean density of a star that has a rotation period of one millisecond
A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle, What is the mass of the wheel
Draw a diagram of the system including all relevant information. Include what you would expect to see at the slit and at the screen.
One solenoid is centered inside another. The outer one has a length of 47 centimeter and contains 6800 coils, Evaluate the mutual inductance of these solenoids
A long, straight wire carrying a current of 2.00 A is placedalong the axis of a cylinder or radius 0.500 m and a length of 3.00m. Determine the total magnetic flux through the cylinder
Two identical containers are open at the top and are connected at the bottom via a tube of negligible volume and a valve that is closed. Both containers are filled initially to the same height of 1.00 m, one with water, the other with mercury, as the..
If a point charge of -30 mC experiences an electrostatic upward force of 27 mN at a certain location in the laboratory, find the magnitude and direction of electric field at that location
A whale uses sonar (sound waves) to supplement its eyesight for deep water dives. The whale sends out a sound wave, which returns in 0.5 seconds. How far away is the object it bounced off
Far out in space, a mass m1=148300.0 kg rocket and a mass m2= 245000.0 kg rocket are docked at opposite ends of a motionless 87.0m long connecting tunnel.
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