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During launch from a diving board, a diver's angular velocity abouther center of mass cahnges from 0 to 5.40 rad/s in 180m/s. Her rotational inertia about her center of mass is 10.5kgm2. During the launch, find her average angularacceleration, the average external torque exewrted on her by theboard, and the total number of degrees she rotates.
A pulley is 1.8 meters away from the wall. A 4 meter string that has a mass of 25 grams has one end attached to the wall and the other end hung over the pulley. What is the mass of the iron
A 12.0 V battery is connected inseries with a resistor and an inductor. The series circuit has atime constant of 597 µs, and themaximum current is 302 mA. What is thevalue of the inductance
A 1.2kg block is dropped from 48 cm above a spring in equilibrium. Calculate the maximum compression in the spring
A small plane is dropping emergency supplies to a fishing boat that has been blown out to sea. How far from the boat will the supplies land
Consider a block of mass m sliding down an inclined plane andit has three forces acting on it (1) a gravitational force(pointing down). (2) a normal force perpendicular to the surface ofthe plane. (3) a friction force opposing motion down the plan..
Drag race tires in contact with an asphalt surface have an extremely high coefficient of static friction. Assuming a constant acceleration and no slipping of tires, estimation the coefficient of static friction needed for a drag racer to cover 1.0 km..
Nichrome wire of cross-sectional radius 0.782 mm is to be used in winding a heating coil, find the length of wire you must use to wind the coil
A simple circuit is set up that only consists of a 12 V battery connected to a light bulb with a resistance of 4 Ohms
A 1443 kg railroad car traveling at a speed of 10m/s strikes an identical car at rest. what is their common speed afterward
Suppose a friend asks to examine the 10.0 kg box you were Given, hoping to guess what is inside; and you respond, Calculate the magnitude of the upward force FN exerted by the table on the box
On a ski weekend in Colorado, Bob, whose mass is 75.0kg, skis downa hill that is inclined at the angle of 15.0 degrees to the horizontal, How much work is done by gravity on Bob as he goes down the hill
A sanding disk withrotational inertia 1.7 10-3 kgm2 isattached to an electric drill whose motor delivers a torque of8 Nm about the centralaxis of the disk. determine the angular momentum of the disk
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