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You attach a 100 gram mass to a spring and it stretches 4cm. What is the spring constant? If you set the spring in simple harmonic motion, what will the period and frequency be?
A solid, uniform sphere starts from rest and is rolled down a 50m high hill. the first half of the hill is rough, what is the translational speed of the sphere at the bottom of the hill
A boat moves through the water with two forces acting on it. One is a 2149 N forward push by the motor on the propeller, What is the acceleration of the 1156 kg boat
You are standing on a sheet of ice that covers the football stadium parking lot in Buffalo; there is negligible friction between your feet and the ice. what is your speed after the collision
A container is filled to a depth of 25.0 cm with water. What is the absolute pressure at the bottom of the container
After having collected samples along the shore all day long, a marine biologist walks back to her campsite, 1.69 km away. What distance did the dog run
the horizontal and the chair slides along the floor. Using Newton's laws, compute the magnitude of the normal force that the floor exerts on the chair.
A 0.8 kg mass is moving in a circle of radius 1.5 m on a flat frictionless table at the end of a string. The speed of the mass is 3 m/s. The string routes through a hole in the center of the table and is held by you underneath the table.
A modern sculpture has a large horizontal spring, with a spring constant of 274 N/m, By how much has the spring stretched
Five children are pushing on a snowball. Each is pushing with a force of 10.0 N. Each is pushing at an angle of 45° relative to his neighbor. What is the net push on the ball
During each cycle, a refrigerator ejects 680 kJ of energy to a high-temperature reservoir, and takes in 600 kJ of energy from a low-temperature reservoir. Determine the work done on the refrigerant in each cycle. Determine the coefficient of performa..
Charges Q1 = 6 x 18-8 C and Q2 = - 6 x 10^9 C are separated by 0.1m. What is the magnitude of the electric field midway between the two charges
Prove that when reflected, a ray of light incident upon a plane mirror rotates through an angle of 2q if the mirror is rotated through an angle of q. The mirror rotates about an axis that is perpendicular to the plane of incidence of the ray.
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