A uniform 6.61 m long horizontal beam that weighs 454N is attached to a wall by a beam connection that allows the beam to rotate. Its far end is supported by a cable that makes an angle of 60° with the horizontal and a 565N person is standing 1.07m from the pin. Find the tension (Ft) in the cable by assuming that the origin of the coordinate system is at the rod´s center of mass.

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?