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The tension in a 2.5-m-long, 1.2-cm-diameter steel cable (? = 7800 kg/m3) is 850 N. What is the fundamental frequency of vibration of the cable?
A block of metal has an actual weight of 45 N and an apparent weight of 25 N in water. What is the buoyant force from the water
A 130 lb subject did 33 lifts/min up a 30 cm step for 5 minutes, what was the work rate, power output and what was the total work done
An Earth satellite moves in a circular orbit 644 km above Earth's surface with a period of 97.40 min, What are the magnitude of the centripetal acceleration of the satellite
A curve is banked at an angle of 30 degrees with respect to the horizontal. what is the ideal speed for a motorist to take the curve when it is covered by glare ice
An intergalactic rock star bangs his drum every 1.10 s. A person on earth measures that the time between beats is 2.10 s
A parallel-plate capacitor with 2.0 mm plate spacing has circular plates and holds a charge of +/- 3uC on each plate, What is the radius of the plates
A uniform disk of mass M = 5.6 kg has a radius of 0.14 m and is pivoted so that it rotates freely about its axis. What is the torque being exerted by this force about the rotation axis
A ball of mass 0.65 kg is fired with velocity 120 m/s into the barrel of a spring gun of mass 2.4 kg initially at rest on a frictionless surface. What fraction of the ball's initial kinetic energy is stored in the spring
A 100 g ball on a 60 cm long string is swung in a vertical circle whose center is 200 cm above the floor. The string suddenly breaks while it is parallel to the ground and the ball is moving upward. The ball reaches a height 600 cm above the floor..
A small conductive rod of length 1.4 m moves with a constant velocity v=11 m/s in a direction parallel to a long wire carrying a current of 34 A. Calculate the electric potential induced across the rod
Jack was exposed to fast neutrons; he received a radiation dose of 280rem on part of his hand, affecting 30.0grams of tissue. What was the total energy of the radiation Jack received
A 0.347-nm photon collides with a stationary electron. After the collision, the electron moves forward and the photon recoils backwards. Find the momentum of the electron
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