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A heavy-duty stapling gun uses a 0.168 kg metal rod that rams against the staple to eject it. The rod is attached and pushed by a stiff spring called a "ram spring" (k = 35934 N/m). The mass of this spring may be ignored. Squeezing the handle of the gun first compresses. The ram spring is compressed by 3.10 10-2 m from its unstrained length and then releases from rest. Assuming that the ram spring is oriented vertically and is still compressed by 1.50 10-2 m when the downward-moving ram hits the staple, find the speed of the ram at the instant of contact.
water flows with soeed1 m/s from a small hole made at the bottom of a tank filled with water. find height of the tank
A parallel-plate air capacitor has a capacitance of 400pF and a charge of magnitude 0.150\muC on each plate. What is the area of each plate
A 0.10 m long solenoid has a radius of 0.05 m and 15000 turns. The current in the solenoid changes at a rate of 6.0 A/s. Determine the self-induced emf in the solenoid
As a baseball is being thrown, it goes from 0.0 to 40.0 ms in 0.34 s, What is the acceleration of the baseball
In a certain particle accelerator, a current of .5mA is caried by a 5-MeV proton beam that has a radius of 1.5 mm. Find the power consumption of the accelerator
A brick is thrown vertically upward with an initial speed of 4.90 m/s from the roof of a building. If the building is 98 m tall, how much time passes before brick lands on the ground.
A Carnot heat engine has a thermal efficiency of 0.615, and the temperature of its hot reservoir is 775 K. If 2375 J of heat is rejected to the cold reservoir in one cycle, what is the work output of the engine during one cycle?
The amplitude of a system moving with simple harmonic motion is doubled. The total energy will the be:
A boy of mass 43.5 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.3 m/s. Find the final velocity of the skateboard
A meter stick of aluminum is bent at its midpoint so that the two halfs are at right angles and the midpoint is at the origin of the x,y coordinate system
A 12.6 g CD with a radius of 6.16 cm rotates with an angular speed of 31.3 rad/s. What is its kinetic energy, What angular speed must the CD have
A parallel plate capacitor has a capacitance of 2 µF when the plates are seperated by a vacuum. What is the electric field with the slab in place
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