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An electric motor turns a flywheel through a drive belt that joins a pulley on the motor and a pulley that is rigidly attached to the flywheel as shown in the figure below. The flywheel is a solid disk with a mass of 61.5 kg and a radius R = 0.625 m. It turns on a frictionless axle. Its pulley has much smaller mass and a radius of 0.230 m. The tension Tu in the upper (taut) segment of the belt is 162 N, and the flywheel has a clockwise angular acceleration of 1.67 rad/s2. Find the tension in the lower (slack) segment of the belt. N
Three point charges, -5.2 x 10-9 C, -8.1 x 10-9 C, and +7.7 x 10-9 C, are fixed at different positions on a circle. The total electric potential at the center of the circle is -2300 V
A rock thrown horizontally from the top of a radio tower lands 22.0 m from the base of the tower. how high is the tower
an initially stationary block of mass m on a floor. A force of magnitude F = 0.580·mg is then applied at upward angle ? = 16°. What is the magnitude of the acceleration of the block across the floor if (a) ?s = 0.600 and ?k = 0.500
A solar cell provides an emf of 0.20 V. If the cell supplies a constant current of 21.5 mA for 8.0 h, how much electrical energy does it supply
An object 6.0mm high is placed 18cm from a convex mirror of radius of curvature 18cm. Determine the image distance using the mirror equation
A 71.0kg football player is gliding across very smooth ice at 2.00m/s, What is the player's speed afterward if the ball is thrown at 18.0m/s relative to the ground
An RL series circuit has R = 72.0? and L = 2.20mH . The series combination is connected across a 155V (rms), 58Hz power supply. Find the impedance of the RL combination
Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.30 x 10^11 m apart. What is the mass of the smaller star
The index of refraction for violet light in silica flint glass is 1.65, and that for red light is 1.62. What is the angle of deviation for the red ray passing through a prism of apex angle
A small rocket to gather weather data is launched straight up. few seconds into the flight, its velocity is 110 and it is accelerating at 17 . At this instant, the rocket's mass is 50 and it is losing mass at the rate of 0.45 as it burns fuel.
an object 10.0-kg slides upward on a slippery vertical wall a force of 60n at an angle of 60 degrees. determine the normal force exerted on the object by the wall
at a certain location the earth has a magnetic ?eld of 8.3 times 10-5 t pointing in the northward direction at 44?
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