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A moving 2.7 kg block collides with ahorizontal spring whose spring constant is 426N/m (see figure). The block compresses the springa maximum distance of 15.0 cm from its rest position. Th ecoefficient of kinetic friction between the block and the horizontal surface is 0.14.
A) What is the work done by the spring in bringing the block torest?B) How much mechanical energy is beingdissipated by the force of friction while the block is being brought to rest by the spring?C) What is the speed of the block when it hitsthe spring?
A technician wraps wire around a tube of length 37 cm having a diameter of 8.3 cm. If the current in this solenoid increases at the rate of 2 A/s, what is the self-induced emf in the solenoid
Two cars drive on a straight highway. At time , car 1 passes mile marker 0 traveling due east with a speed of 17.0 . At the same time, At what time do the cars pass next to one another
An amplifier supplies 5.0 Watts to a perfectly efficient loudspeaker at one end of a 10.0 cm diamter tube filled with air. What is the intensity of the sound at the other end of the tube
A baseball player slides into second base during a steal attempt. Assuming reasonable values for the length of the slide, estimate the average force of friction acting on the player
q1. a heavy piece of hanging sculpture is suspended by a 94 cm long 4.6 g steel wire. when the wind blows hard wire
A disk7.97cm in radius rotates at a constant rate of1160rev/min about its central axis. Determine the radial acceleration of a point on the rim
A speeder is pulling directly away and increasing his distance from a police car that is moving at 25 m/s with respect to the ground. Find the speeder's speed with respect to the ground
A series ac circuit contains a 230? resistor, a 13.0mH inductor, a 2.50?F capacitor, and an ac power source of voltage amplitude 45.0Voperating at an angular frequency of 360rad/s. Find the average power delivered to the entire circuit
two protons are 3.0fm apart. 1fm 1 femtometer 1 x 10-15 m a. what is the magnitude of the electric force on one
If the inside of the vessel is maintained at atmospheric pressure 1.013 × 105 Pa, what is the net force on a porthole of diameter 16.9 cm?
suppose there is significant air resistance in addition to the spring force acting on the mass as it oscillates up and down. how will the elastic potential energy change
the intrinsic magnetic dipole moment of the electron has magnitude 9.33 x 10-24 a middotm2. in other words the electron
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