SOLUTION: Sarah does 35 N-m of work on a jack to lift her car up so she can change a flat tire. If the jack puts out 30 N-m of work, what is the jack’s efficiency?
Algebra.Com
Question 1162258: Sarah does 35 N-m of work on a jack to lift her car up so she can change a flat tire. If the jack puts out 30 N-m of work, what is the jack’s efficiency?
Answer by ikleyn(52832) (Show Source): You can put this solution on YOUR website!
.
It is the ratio of the smaller number to the greater one.
RELATED QUESTIONS
A woman changes a flat tire with a tire iron 50.0 cm long. She exerts a force of 53.0 N.... (answered by galactus)
A jack requires an effort of 50kg to lift a load of 800kg weight.calculate the mechanical (answered by ikleyn)
Four employees drive to work in the same car. The workers claim they were late to work... (answered by Boreal,ikleyn)
megan gets into her car to drive to work witch is n miles away. If she drives at a... (answered by Kaabwe)
A 50 N bucket is lowered 2 m by a worker pulling up on a rope-pulley system using 25 N of (answered by ikleyn)
A 50 N bucket is lowered 2 m by a worker pulling up on a rope-pulley system using 25 N of (answered by ikleyn)
Jack and Jill together can do a piece of work in 3 days.
They can finish the work if... (answered by Edwin McCravy,ikleyn)
What is the maximum speed with which a 1200-kg car can round a turn a radius of 90.0 m on (answered by solver91311)
The data in the table that follows was collected by a large car manufacturer concerning... (answered by stanbon)