If the load on pulley e is 20n, how much effort is needed to life it?

State the right hand rule of the direction of magnetic field in a conductor carrying current

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.

Contains chemical energy. a. heat b. light c. natural gas