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A mass is stretched 4 centimeters from the equilibrium position of a spring. If the displacement is doubled, what can be concluded about the restoring force? A. It is halved. B. It is doubled. C. It stays the same. D. It is increased by 4. E. It is decreased by 1/4.
A steel beam that is 5 m long weighs 320N. It rests on two supports, 3.00 m apart, with same amounts of the beam extending from each end. Suki, who weighs 525N, stands on the beam in the center and then walks toward one end. How close to the end c..
How far below the release point is the center of mass of two stones at t = 550 ms? (Neither stone has yet reached the ground.)
A 175 watt motor is used to lift a 129 kg container to a height of 7m. How much time does it take to lift container with the motor.
imagine that each person is about the same distance from the center of the field and can generate the same level of sound intensity. How many people are at game.
A rod supports a 2.35 kg lamp. a) What is the tension in the rod? b) Estimate the components of the force that the bracket exerts on the rod.
The total mechanical energy of the spacecraft, assume that the gravitational potential energy is zero at an infinite distance from the Earth.
A horizontal 797N merry-go-round is a solid disk of radius 1.53 m, started from rest by a steady horizontal force of 50.4 N applied tangentially to the edge of disk. Determine the kinetic energy of the disk after 3.06 s.
You're carrying a 3.6-m-long, 25kg pole to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35cm from its tip.
The reflecting surfaces of two intersecting flat mirrors are at the angle of 59. A light ray strikes the horizontal mirror, reflects off horizontal mirror, impinges on the raised mirror, reflects off the raised mirror and proceeds in the right-han..
A 0.33kg block is located 0.2 m from the center of a turntable. The coefficient of static friction between block and surface of the turntable is 0.44.
Question: For all generators: Eg = 1\"\"0°, χ1 = j0.25 For all transformers: χ1 = j0.75 [A] Write the Y and Z matrices. B] Write the model equation. [C] For each bus, find V, ρ and Q.
A tennis ball with a speed of 13.20 m/s is moving perpendicular to a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 10.36m/s.
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