Calculate the specific heat of a gas at constant volume, given that the mass of the gas is 100 kilograms, the initial temperature of the gas is 20 kelvins and the final

 temperature of the gas is 50 kelvins. The total heat supplied to the gas is 105 kilojoules.

The compression ratio of a diesel engine is:

The petrol engine works on ___________.

In which, systems, does no heat or work cross its boundary?

A couple of two bodies produces which type of motion?

Up to which point in a stress-strain curve is Hooke's law applicable?

What is combustion of fuel in a cylinder at so slow a rate that there is no rise in cylinder pressure called?

What is the term for a value in an equation which does not change?

What is a connecting rod bearing?

What is the connecting rod?

A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span