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The mechanism shown in the figure is used to raise a crate of supplies from a ship's hold. The crate has total mass 56 kg. A rope is wrapped around a wooden cylinder that turns on a metal axle. The cylinder has radius 0.20 m and a moment of inertia = 3.0 kg*m^2 about the axle. The crate is suspended from the free end of the rope. One end of the axle pivots on frictionless bearings; a crank handle is attached to the other end. When the crank is turned, the end of the handle rotates about the axle in a vertical circle of radius 0.12 m , the cylinder turns, and the crate is raised.
What magnitude of the force F applied tangentially to the rotating crank is required to raise the crate with an acceleration of 0.85 m/s^2? (You can ignore the mass of the rope as well as the moments of inertia of the axle and the crank.)
a 1.00 x 10^4 kg railroad car is rolling at 6 meters per sec. What is the cars speed just after gravel is loaded
1. the ground state ofnbsp has jpi 32-1 the first excited state at 67.4 kev has jpi 12-1 and the second excited state
An outside loudspeaker (considered a small source) emits sound waves with a power output of95W. Find the intensity level in decibels at that distance
if torque is a vector with specific direction in space what is meant by clockwise and counterclockwise torques? if
A 1.2-cm-tall object is located 4.8cm to the left of a converging lens with a focal length of 5.8cm. Find the size of the final image
A spherical mirror is to be used to form an image, four times as tall as an object, on a screen positioned 4.6 m from the mirror. Describe the type of mirror required
Particle A andparticle B are held together with a compressed springbetween them. When they are released, the spring pushes them apart,and they then fly off in opposite directions, what are the kinetic energies of each particle
A current carrying loop of wire lies flat on a table top. What is the direction of the magnetic field caused by this current, outside the loop
Suppose the velocity of a bug as a function of time is given by the following function between 0 and 2 s, Find the average speed of the bug for the whole two second trip
the earth completes a circular orbit around the sun in one year. what is the speed of the earth around the sun
If a Mack truck with a mass mt = 20000 kg and a Honda Civic with a mass of mc=2000 kg have a head on collision and force upon the Mack truck is 1000 N
An object that is 5 centimeter tall is located 10 centimeter in front of a converging lens that has a 6 centimeter focal length. Determine what is the size of the image produced
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