A student uses a pulley to lift a log. Put the following steps in the correct order to show how they can calculate the pulley's efficiency.(3 points)
multiply by 100 to get a percent.
find the input energy and output energy.
divide the output energy by the input energy.
1. Find the input energy and output energy.
2. Divide the output energy by the input energy.
3. Multiply by 100 to get a percent.