a uniform steel bar 10 m long of weight 1000 N is supported by two vertical wires at points 1 m from each end. weight of 2000 N and 4000 N are hung at 2 m and 2.5 m respectively from each end. make a sketch of the force acting on the steel bar

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 seconds. answer in m/s.

While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.