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Consider a large uniform rectangle, length L on the long edge and width W on the short edge. This rectangle is rotating so that the axis of rotation is along the long edge of the rectangle and this axis is horizontal. When the rectangle is at equilibrium, the perpendicular line passing through the axis of suspension and the center of mass is vertical and defines the ? = 0 position. This is the position we assume for the calculation below.
Calculate both the horizontal and vertical position of the center of mass by direct integration. This means doing two integrals.
Calculate the moment of inertial of the rectangle, which means doing one integral.
Starting from rest, a 98 kg firefighter slides down a fire pole. The average frictional force exerted on him by the pole has a magnitude of 800N, and his speed at the bottom of the pole is 3.2 m/s. How far did he slide down the pole.
When a 290 g piece of iron at 182°C is placed in a 100 g aluminum calorimeter cup containing 250 g of glycerin at 12°C, What is the specific heat of glycerin
When a nerve cell depolarizes, charge is transferred across the cell membrane, changing the potential difference. For a typical nerve cell, 9.0 pC of charge flows in a time of 0.50ms . 1. What is the average current? Express your answer to two sig..
In a mall, a shopper rides up an escalator between floors. At the top of the escalator, the shopper turns right and walks 11.72 m to a store. At what angle is the escalator inclined above the horizontal
2000 kg elevator is accelerated uniformly from rest to 4 m/s in a time of 90s. find the change in mechanical energy of the elevator
A particle with radius r=5i+4k+3k has a force of F=3i-8j+5k acting on it. What is the torque in unit vector notation about the origin
what are the wavelengths of electro magnetic waves in free space that have frequencies of a) 5.00 x 10^19Hz, b) 4.00 x 19^9.
Consider N atoms confined on a surface of area A at temperature T. The atoms form a two-dimensional (2D) gas of classical, non interacting particles.
question1in the cooper and shepard experiment 1973 participants were asked to choose whether a stimulus a letter was
A therapist examines the range of motion of an athlete's knee joint. What was the angular displacement of the lower leg from full extension to full flexion
A 1.11 kg block slides down a 24.0 m long 28.0° incline at constant velocity. How much work is done by friction
A 1130kg car and 4020kg truck undergo a perfectly inelastic collision. Find the velocity of the wreckage immediately after the collision
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