A team of students builds a lever as a science project. They expend 10,300 Joules of energy to lift some brick

Question

A team of students builds a lever as a science project. They expend 10,300 Joules of energy to lift some bricks with the lever. If 6,283 Joules of energy are applied to the bricks, what is the lever’s efficiency?(1 point)
Responses

61%
61%

164%
164%

39%
39%

0.61%
0.61%

GPT-5 mini · Answer

Efficiency = (useful energy output / energy input) × 100% = (6,283 J / 10,300 J) × 100% = 61%.

A team of students builds a lever as a science project. They expend 10,300 Joules of energy to lift some bricks with the lever. If 6,283 Joules of energy are applied to the bricks, what is the lever’s efficiency?(1 point)
Responses

61%
61%

164%
164%

39%
39%

0.61%
0.61%

All Answers 1

Submit Your Answer

A team of students builds a lever as a science project. They expend 10,300 Joules of energy to lift some bricks with the lever. If 6,283 Joules of energy are applied to the bricks, what is the lever’s efficiency?(1 point) Responses 61% 61% 164% 164% 39% 39% 0.61% 0.61%

All Answers 1

Submit Your Answer

A team of students builds a lever as a science project. They expend 10,300 Joules of energy to lift some bricks with the lever. If 6,283 Joules of energy are applied to the bricks, what is the lever’s efficiency?(1 point)
Responses

61%
61%

164%
164%

39%
39%

0.61%
0.61%