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A crane is lifting a180kg crate upward with an acceleration of 1.2.The cable from the crate passes over a solid cylindrical pulley at the top of the boom.The pulley has a mass of 130kg.The cable is the wound onto a hollow cylindrical drum that is mounted on the deck of the crane. The mass of the drum is 150kg, and its radius is 0.76m.What is the magnitude of the torque the engine applies to the drum? Ignore the mass of the cable.
A charge +3.9 ?C is placed at the center of the hollow spherical conductor with the inner radius 3.1 cm and outer radius 5.5 cm, What is the total charge on interior and exterior surface
At 2500K hydrogen gas (H2) adds two more degrees of freedom to its motion. It has three translation motions, two rotational motions, What would be its kinetic energy per molecule
A nuclear power plant generates(output) 500 MW. it is 34% efficient, How much does the water temperature rise
how much energy is required to accelerate a spaceship with a rest mass of 107 metric tons to a speed of 0.453 c?every
The 2.0 cm diameter coil shown below has 25 turns and has a current flowing through it of 5.00 A. What is the average change in flux (25 turns) going from 30 to 90 degrees
A man traveling on a bicycle at 10 m/s along a straight road that runs parallel to some railroad tracks. What frequency is heard by a stationary observer located between the train and the bicycle
Water at a pressure of3.8atm at street level flows into an office building at a speed of0.70m/s through a pipe4.4cm in diameter. Calculate the flow velocity and the pressure in such a pipe on the top floor
A 40.0 cm long organ pipe is filled with air at 0 degrees C and is open at both ends. What is the beat frequency between the fundamental frequencies of the two organ pipes
a cube is located with one corner situated at the origin of an x y z coordinate system. one of the cubes faces lies in
An explosion breaks an object originally at rest into two fragments. One fragment acquires twice the kinetic energy of the other. What is the ratio of their masses
A uniform marble rolls down a symmetric bowl, starting from rest at the top of the left side. The top of each side is a distance { h} above the bottom of the bowl.
A car's outside rear-view mirror is convex, with focal length -1.5m . In the mirror you see a truck that's actually 4.0m tall and 10.3m behind you. What is its apparent height
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