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A 1,800-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 5.80 m before coming into contact with the top of the beam, and it drives the beam 9.0 cm farther into the ground as it comes to rest. Using energy considerations, calculate the average force the beam exerts on the pile driver while the pile driver is brought to rest.
Consider the circuit in the figure below. Take emf = 6.00 V, L = 7.00 mH, and R = 6.00 O. What is the value of the final steady-state current
A car drives north at 48 for 10 and then turns east and goes 5 at 62 . Finally, it goes southwest at 24 for 6. Determine the cars displacement.
The change in the kinetic energy of the system
A person with mass of 70kg is climbing a ladder with a length of 6 m and the ladder has a mass of 20kg that leans against a smooth, What is the magnitude of the frictional force of the floor
The truck is parked on the platform of a weight scale. Explain by how much does the scale reading exceed the weight of the truck and sand?
Five students are ice stating. They hold hands while skating with a velocity of 10 sec and suddenly attempt to skate in a circle. calculate the centripetal acceleration and force acting on this student
An air puck of mass m1 = 0.32 kg is tied to a string and allowed to revolve in a circle of radius R = 1.1 m on a frictionless horizontal table. What is the horizontal force acting on the puck
A sound wave with an intensity level of 80.9 dB is incident on an eardrum of area 6.00 10-5 m2. How much energy is absorbed by the eardrum in 3.0 minutes
During each cycle, a refrigerator ejects 605 kJ of energy to a high-temperature reservoir, Determine the work done on the refrigerant in each cycle
A wheel is rotating freely with an angular speed of 20 rad/s on a shaft whose moment of inertia is negligible. Calculate the angular speed of the coupled wheels
A duck flying horizontally due north at 14.8 m/s passes over Atlanta, What is the magnetic force acting on the duck
en boxes, each 21.0 cm high and weighing 235 N, initially are all side by side on the floor. Compute the power necessary to stack the boxes
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