February 22, 2017

Homework Help: physics

Posted by kirsten on Thursday, July 22, 2010 at 1:43am.

The heating value of a Gas is 39MJm-3

a) If 4.5m-3 of the gas is burned how much energy is released?

b) If the gas is burned in 5 minutes what is the power?

c) If the burning occurs in an engine that converts the energy to forward
motion and the engine is 20% efficient in converting the heat energy: what is
the kinetic energy a vehicle would have after burning the above quantity of
gas? – (assume no losses due to friction or air resistance)

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