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Q1. A 170 g block hangs from a spring with spring constant 9.0 N/m. At t=0 s the block is 24 cm below an equilibrium point and moving upward with a speed of 104 cm/s. What is the block's oscillation frequency? What is the block's distance from equilibrium while the speed is 21 cm/s? What is the block's position at t=1.0 s?
Q2. A stretched rubber band has the length of 0.04 m and a fundamental frequency of 462 Hz. What is the speed at which waves travel on the rubber band?
A 22 kg block of iron drops out of the back of a pickup truck traveling at 55 mi/h. By roughly how much has the temperature of the iron increased
Explain how many penguins of mass 27 kg each can stand on the ice block before they get their feet wet?
Two billiard balls are initially traveling toward each other at speeds of 1.05 m/s for ball 1 and 3.40 m/s for ball 2. Find their final velocities
As a person walks, the femur (upper leg bone) slides in a socket in the hip, Find the frictional force on the bone in the hip joint
Consider two forces exerted on a 65kg object: one 200. N acting at 25 degrees and another of 100. N acting at 45 degrees. find the net force acting on the object
Estimate approximately the angular deflection of the muon's trajectory, given that the rest mass of muon is 100Mev and that the saturation magnetization in iron is equivalent to 1.6 x 10^23 electron moments per cm^3.
A motor is designed to operate on 131 V and draws a current of 12.2 A when it first starts up. What is the resistance of the armature coil
A player passes a basketball to another player who catches it at the same level from which it was thrown. The initial speed of the ball is 8.1 m/s, What was the initial direction of the ball
A 0.5m^3 adiabatic tank contains steam at 1000 kPa and 350 C, Determine the final steam in the tank and the mass discharged
A flywheel having constant angular acceleration requires 4.40s to rotate through 169rad . Its angular velocity at the end of this time is 110rad/s. find the angular acceleration of the flywheel
A 2.0-kg mass moves with a speed of 5.0 m/s. It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, what is the speed of the masses after the collision
Three resistors, 27, 49, and 79 ?, are connected in series, and a 0.51-A current passes through them. What is the potential difference across the three resistors
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