The diagram shows four solid pieces of the same metal. Each piece has the same thickness and stands on a bench as shown.
Which piece of metal produces the greatest pressure on the bench?
А 1.0 cm
B 3.0 cm
C 1.0 cm
D 2.0 cm​

Avoltaic cell converts chemical energy to

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.

Whenever the net force on a moving object is zero its acceleration is