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A horizontal spring-mass system has low friction, spring stiffness 225 N/m, and mass 0.2 kg. The system is released with an initial compression of the spring of 8 cm and an initial speed of the mass of 3 m/s. (a) What is the maximum stretch during the motion? ___m (b) What is the maximum speed during the motion? ___m/s (c) Now suppose that there is energy dissipation of 0.02 J per cycle of the spring-mass system. What is the average power input in watts required to maintain a steady oscillation? ___watt
Assume the ball leaves Sarah's hand a distance 1.5 meters above the ground, reaches a maximum height of 15.0 m above the ground, and takes 2.692 s to get directly over Julie's head. What is the speed of the ball when it leaves Sarah's hand? m/s 6)..
A rifle with a barrel length of 58 fires an 11 bullet with a horizontal speed of 370. The bullet strikes a block of wood and penetrates to a depth of 15.
a tennis player receieves a srve with the ball travelling horizontally towards him at 50 m/s: what was the change in momentum of the ball
A 6.6 x10^-5 meter wide slit in an opaque screen is clarified by monochromatic light with a wavelength of 543.5 nanometres from a laser. What is the angular spacing between the mainly intense maximum and the nearest minimum in the pattern of emerging..
The current in a 120-V reading lamp is 1.8 A. If the cost of electrical energy is $0.070 per kilowatt-hour, how much does it cost to operate the light for an hour
A positive charge Q = 6400.00 C is uniformly distributed over the volume of a sphere of radius R =1.50 m. Assume a spherical cavity of radius R/2 is cut out of the solid sphere, the center of the cavity being a distance R/2 from the center of the ori..
You work for a moving company and are given the job of moving two crates (masses are 130kg and 280kg) held together by a rope attached between the two. You pull on a rope attached to the larger crate giving the system the acceleration of 0.29m/s2. Wh..
50j of work are done per cycle on a refrigerator with a coefficient of performance of 5.0. Part A: How much heat is extracted from the cold reservoir per cycle
a 1.91-kg solid sphere radius 0.130 m is released from rest at the top of a ramp and allowed to roll without
A hawk is flying horizontally at 17.0m/s in a straight line, 160 m above the ground. A mouse it has been carrying struggles free from its grasp. The hawk continues on its path at the same speed for 2.00s before attempting to retrieve its prey.
Batteries consist of an ideal source of potential dissimilarity in series with a small resistance. The electrical energy of the battery is produced with chemical reactions that occur in the battery. But, these reactions also result in a small resista..
An x-ray photon with wavelength 5.0 pm collides with a free electron initially at rest. find the maximum possible kinetic energy acquired by the electron
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