Sunday
November 23, 2014

Homework Help: Physics

Posted by Anonymous on Tuesday, December 4, 2012 at 2:29pm.

A 46% efficient device uses chemical energy to generate 570J of electric energy.

1. How much chemical energy is used?

2. A second device uses twice as much energy to generate half as much electric energy. What is its efficiency?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Science - Molecules that make up matter move constantly.Which of these forms of ...
Science - What type of energy from the Sun do plants use to make their own food...
biology - Which of the following is true about the relationship between energy ...
Physics - A car's engine is only 12% efficient at converting chemical energy in ...
Physics - a bike is 25% efficient in converting energy of the bicyclist to ...
Science - A car's engine is only 12% efficient at converting chemical energy in ...
Science - A car's engine is only 12% efficient at converting chemical energy in ...
ap chemistry - a battery operated tool, such as a cordless drill, converts... a...
Physics - Aa particular bicycle is 25% effificent in converting the energy of a...
Science - During the process of photosynthesis, solar energy is converted into: ...

Search
Members