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A 2kg box slides along a frictionless surface with a speed of 15m/s and approaches a horizontal spring with a spring constant of 2000N/m. If one end is fixed,
a) How far will the spring compress in stopping the box?
b) How far will the spring be compressed as the box's speed is reduced to one half of its original speed?
The electric field strength is 40800 N/C inside a parallel-plate capacitor with a 2.2 mm spacing. obtain the proton's speed when it reaches the negative plate
A spring, with a force constant 5.00x10^2 n/m, is horizontal with one end fixed to a wall and the other end free. How far will the block travel once the spring is released
Paul is what most people consider a "jock." He is the captain of both the football and wrestling team and he also plays hockey. Upon entering Mrs. Title's class she figured that he would not take course seriously nor would he excel in class. She p..
A(n) 716 kg elevator starts from rest. It moves upward for 4.36 s with a constant acceleration until it reaches its cruising speed of 2.14 m/s. Find the average power delivered by the elevator motor
The mass of a regulation tennis ball is 58.0 g (although it can vary slightly), and tests have shown that the ball is in contact with the tennis racket for 31.0 ms. what impulse did he exert on the ball
You're carrying a 3.40 m-long, 23 poles 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 35 from its tip.
A 24-kg boy stands 1 m from the center of a frictionless playground merry-go-round, which has a moment of inertia of 218 kg m2. Calculate the speed of the boy relative to the surface of the merry-go-round
A damped mass-spring system oscillates at 275-Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 3.20cm and the energy of the oscillating system is then 32 J.
A space traveller weighs herself on Earth, at a location where the acceleration due to gravity is 9.81 m/s2, and finds a value of 543 N. What is her mass
Suppose you take a 2.0×102? resistor and a 0.40H inductor and make a series circuit with a voltage source that has voltage amplitude 30V, What is the current amplitude
Gas is confined in a tank at a pressure of 12.6 atm and a temperature of 23.0°C. what is the pressure of the gas remaining in the tank
An operating gearbox (transmission) has 200. hp at its input shaft while 190. hp are delivered to the output shaft. Determine the rate of entropy production by the gearbox
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