P303 - Efficiency

Calculate the useful energy output for a device when its total energy input is 60 kJ and it has an efficiency of 23%.

Calculate the kinetic energy output for a toy car when its battery provides 80 kJ and it has an efficiency of 84%.

Calculate the useful energy output for a light bulb when total energy input is 3000 J and it has an efficiency of 32%.

Calculate the useful energy output for a toaster when total energy input is 51230J and it has an efficiency of 60%.

Calculate the useful energy output for a buzzer when total energy input is 8700 J and it has an efficiency of 3%.

Calculate the total energy output for a device which has an efficiency of 23% and produces 13.8 kJ of useful energy.

Calculate the total energy output for a toy car which has an efficiency of 84% and produces 67200 J of kinetic energy.

Calculate the total energy output for a light bulb which has an efficiency of 32% and produces 960 J of useful energy.

Calculate the total energy output for a toaster which has an efficiency of 60% and produces 30738 J of useful energy.

Calculate the total energy output for a buzzer which has an efficiency of 3% and produces 261 J of useful energy.