Determine when a solid shape produced by gluing a cylinder of height H and radius R to a hemisphere of radius R made from the same material will be in a stable equilibrium standing on its top.
Two masses are at rest on a plane inclined at angle s=35° above horizontal. A cord from mass A=4 kg, passes over a frictionless pulley at the top of the plane to unknown mass B. The coefficient of friction is f= .25. See attachment for picture showing blocks and plane. a. Find the maximum mass of B for the masses to remain i
Five solid objects made of different materials are placed in a tub of water. The objects are cubes made of wood, ice, aluminum, steel and gold. All of the objects have the SAME mass. The objects are released and allowed to reach some equilibrium position. Note that some of the objects will float, while others will sink. Whic
The asking problem: The uniform rod AB lies in a vertical plane. Its ends are connected to rollers which rest against frictionless surfaces. Determine the relation between the angles teta and alpha when the rod is in equilibrium. Note: This is a 2D problem and not a 3D. It was taken from the «Statics of Rigid Bodies in Two Di
The eight figures show various situations where blocks of different weights are attached by ropes to rigidly fixed objects or to other blocks, which are attached to fixed objects. The situations differ in a number of ways, as the figures show, but all situations represent static equilibrium (i.e. nothing is moving). The weights
The sailor in Figure P8.10 weighs 750N. The force F1 exerted by the wind on the sail is horizontal and acts through point B. The weight of the boat is 1250N and acts through point O, which is 0.8m from the point A along the line OA. The force F2 exerted by the water acts through point A. Determine the net force exerted by t
Explain the important laws of thermodynamics and their physical aspects.
Three equal charges, Q coulombs are located at the vertices of a triangle as shown in the figure. The charges are connected together by strings as shown in the figure. If the length of each string is L, determine the tension in the strings.
There is a 200lb wieght on a table. attached to the mass is a string with the other end attached to a wall. hanging from the string is another string with the other end of that string attached to a unknow wieght. the string between the 200 lb mass and the wall form the following angles: from wall 70 degrees South West, and from
A surveillance TV camera is hung from the roof by 2 cables. If the tension on the left cable is T2=12N, find T1 and the weight of the camera. The angle between T2 and the roof is 20 deg and the angle between T1 and roof is 30 degrees.