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A wrench handle is 30 cm long from the center of the bolt being turned to the point of application of the force on the handle. If a force of 90 N is applied at an angle of 20° with the perpendicular to the wrench handle, what torque is being exerted?
in a standing wave pattern the distance between the second and the seventh nodes is 5cm. if the frequency is 300 hz
A 21.5 g bullet strikes a 0.650 kg block attached to a fixed horizontal spring whose spring stiffness constant is 7.30 x 10^3 N/m and sets it into vibration with an amplitude of 21.5 cm. What was the speed of bullet before impact if the bullet and bl..
use the biot savart to compute the magnetic field at the center of a matalic ring. the ring has a radius of 10^-6 m, compute the magnetic field at the center of the ring
A horse can maintain a top speed of 20m/s for a long distance but has a maximum acceleration of only 6.0m/s^2. how far does it run, to the nearest 10m
A canal boat (mass=25,000 kilograms) is being towed at a uniform velocity v=3.10 m/s, Determine the magnitude and direction of the towing force
A tennis player receives a shot with the ball ( 0.0600kg) traveling horizontally at 50.0 m/s, what is the impulse delivered to the ball by the racket
In New England, the horizontal component of the Earth's magnetic field has a magnitude of2.8 × 10-5T. An electron is shot vertically straight up from the ground with a speed of4.0 × 106m/s.What is the magnitude of the acceleration caused by the magn..
A 60-kg skier with an initial speed of 16 m/s coasts up a 2.50-m high rise, Find her final speed at the top in m/s, given that the coefficient of friction between her skis and the snow is 0.08
In the Atwood machine shown below, m1 = 2.00 kg and m2 = 5.35 kg. The masses of the pulley and string are negligible by comparison. The pulley turns without friction and the string does not stretch. The lighter object is released with a sharp push th..
An electric field of 1.44 kV/m and a magnetic field of 0.363 T act on a moving electron to produce no net force. evaluate what is the electrons speed
Two people push a stalled car at its front doors, each applying a 260 N force at 25 degree to the forward direction. How much work does each person do pushing car 5.5 m.
A laboratory ultracentrifuge is designed to produce a centripetal acceleration of 5.0 x 10^6 g at a distance of 4.00cm from the axis. What angular velocity in rev/min is necessary.
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