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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 66.5 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 (t) in the upper (taut) segment of the belt is 171 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.
What is mass of the ice cube
A 0.400 glider is moving to the right on a frictionless, horizontal air track with a speed of 0.750 when it makes a head-on collision with a stationary 0.150 glider. Find the final kinetic energy of second glider
An 82-kg running back leaps straight ahead toward the end zone with a speed of 7.0 m/s, What change in the running back's momentum does the impulse produce
Two boats start together and race across a 56km wide lake and back. Boat A goes across at 56 km/h and returns at 56km/h. Boat B goes across at 28km/h, and its crew, realize how far behind it is getting.
A 0.20-kg billiard ball travelling at a speed of 15.00 m/s strikes the side rail of a pool table at an angle of 60 degrees. If the side rail rebounds at the equal speed and angle what is the change in its momentum?
A ballistic pendelum of mass 1kg is struck by a 0.003kg bullet moving at 600 m/s. How high does the pendulum swing
A series RLC circuit has components with the following values: L = 22.0 mH, C = 86.0 nF, R = 25.0 ?, and ?Vmax = 100 V, with ?v = ?Vmax sin ?t. Find the resonant frequency of the circuit.
A man pushes a lawn mower on a level lawn with a force of 200N. If 40% of this force is directed downward, then how much work is done by the man
A car is driven 175km west and then 55km southwest. What is the displacement of the car from the point of origin (magnitude and direction).
A disc-shaped grindstone of mass 3.0 kg and radius 8.0 cm is spinning at 600 rev/min. What is the average torque exerted by the axe on the grindstone
A one loop circuit is connected thus: A 3.0 V source, with the + side connected to a 10 ohm resistor, how much power does the bulb dissipate
A harmonic wave has a frequency of v = 40 Hz and a wavelength of 7m. The wave obtains a maximum displacement of Ym = 1.7m, How fast is the wave traveling
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