KileysMom7372 KileysMom7372
  • 01-11-2018
  • Physics
contestada

A person does 50j of work to lift a crate using a pulley. The plley's work output is 42j. What is the pulleys mechanical efficiency?

Respuesta :

kamizam38
kamizam38 kamizam38
  • 01-11-2018
(42/50)*100=84%

Because efficiency =(Useful/total)*100

Hope this helps!
Answer Link

Otras preguntas

Anne owns a business that trades in perishable commodities. Which property would Anne be interested to invest in? A. office building B. land C. warehouse D.
can someone please help me answer this question?
How are neuroscience and medical science alike?
Write 2.028 as a mixed number and simplyed
-1 3/8 divided by (-1 4/7)=
Find the value of x and y. PLEASE A. X=12 y=10 B. X=14 y=11 C. X=14 y=10 D. X=12 y=11
how is the filibusters used differently today than it was in the past
what is 5r^2-18=-9 help please
Shawn and Ellie are construction workers. Shawn can complete a concrete job in 5 hours, while Ellie can complete it in 7 hours. The foreman says that it will ta
the greatest integer that satisfies the inequality 1.6−(3−2y)<5