a car has a mass of 200kg. It is on a hill 1000m high. How much gravitational potential energy does the car have?

The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.

Which articulations allow for greatest range of motion?

Explain why electric current cannot exist if a current doesn't have a voltage source.