Bill does 1500 j of work on a lever, which is a simple machine. the lever does 1350 j of work on a stone. what is the efficiency of the lever? 0.9% 1.1% 90% 111%

efficiency = 90%

Explanation:
Efficiency is used to compare between the input of the system and its output to know how much of the input computes into the output.
It is simply a ratio between the output and the input

For the given:
input to lever is the work Bob performs on it = 1500 J
output of lever = 1350 J

Therefore:
efficiency = (output / input) * 100
efficiency = (1350 / 1500) * 100
efficiency = 90%

Hope this helps :)

The answer is 90%

Hope this helps!!!

So what you would do is go through and add 3 teaspoons(tsp) 6 times because of the 6 tablespoons(tbsp). which will give you an answer of 18. another way is to multiply 3x6=18.

Okay well gravitational energy is matter forced by gravity making energy though the kinetic energy then the electric energy produces electricity from the kinetic energy and the kinetic energy gets its energy from the gravitational energy. was that the answer you wanted or something else?