At Westonci.ca, we make it easy to get the answers you need from a community of informed and experienced contributors. Get immediate and reliable solutions to your questions from a knowledgeable community of professionals on our platform. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

What’s the efficiency of a car that uses 400,000 J of energy from gasoline to make 48,000 J of kinetic
energy?


Sagot :

To calculate efficiency you should divide output by input energy.

The engine produces 48000 j energy from 400000 j given energy from gasoline.

48 000/400 000 = 48/400 = 12/100 = 12%

Efficiency of this engine is 12%