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Find the maximum torsional shear stress in a 75 mm diameter shaft transmitting 40 KW power at 1.33 r/s if the maximum twisting moment.
For the beam shown, plot the shear and moment diagrams. Label each diagram with shear and moment values at the points of interest.
A force is applied to the end of a 2ft long uniform board weighing 50lbs, in order to keep it horizontal, while it pushes against a wall at the left.
A 10 kg solid disk of radius 0.50 m is rotated about an axis through its center. If the disk accelerates from rest to an angular speed of 3.0 rad/s.
Determine the thickness of the elastic core x assuming the material is elastic perfectly plastic with a yield strength of 240MPa.
A force of 30N is applied perpendicularly to the face of a door at a distance of 1.5 m from the hinge of the door. Find the torque on the door about its hinge:
A power square thread screw has a pitch diameter (dm) of 34mm, the lead of the screw 1 of 4mm, the frictional diameter of the collar (dc) of 40mm.
Its speed is 1730 rpm and its torque output to a mechanical load is 29.1 lb-ft*1.356=39.5Nm. What is the output HP and the efficiency?
The car, initially traveling at 12.6km/h, is accelerated up a straight road inclined at 12 degrees to the horizontal so that it covers a distance of 1.2km.
A total charge of 6.3*10^-8C is distributed uniformly throughout a 2.7cm radius sphere. The volume charge density is ___?
The motor has a bearing shaft diameter of 3.2 cm and the coefficient of friction of each bearing is 0.008. Find the torque of friction of the bearings.
A uniform, hollow, cylindrical spool has inside radius R/2, outside radius R and mass M .
A slender rod is pivoted at 0 which is a frictionless bearing. The circular frequency in rad/s at the rod for a small oscillation is?
A roller is rolled by pulling on a rope wrapped around an inner groove. If the roller rolls without slipping, the angular acceleration in rad/sec^2 .
The coil is rotated through a 30.0º angle about the axis shown, the left side coming out of the plane of the figure and the right side going into the plane.
A circular coil with area A and N turn is free to rotate about a diameter that coincides with the x-axis.
What is the least magnitude of the force f? that will succeed in raising the wheel onto the curb when the force is applied at the center of the wheel?
By means of a rope whose mass is negligible, two blocks are suspended over a pulley, as the drawing shows.
A school yard teeter-totter with a total length of 5.2 m and a mass of 36 kg is pivoted at its center. A 18 kg child sits on one end of the teeter totter.
A student on a piano stool rotates freely with an angular speed of 3.16 rev/s. The student holds a 1.50 kg mass in each outstretched arm, 0.794 m.
A rectangular wire loop with a cross-sectional area of 5,000 cm^2 carries a current of 0.50 amperes.
You are installing a new spark plug in your car, and the manual specifies that it be tightened to a torque that has a magnitude of 47 Nm.
In San Francisco a very simple technique is used to turn around a cable car when it reaches the end of its route.
A hoop, a solid cylinder, a spherical shell, and a solid sphere are placed at rest at the top of an incline. All the objects have the same radius.
When the first object reaches the bottom, what is the height above the ground of the other object? Answer in units of m.