sethandkiaya sethandkiaya
  • 25-02-2019
  • Physics
contestada

A mechanical device requires 420 J of work to do 230 J of work to lift a crate. What is the efficiency of the device? 190% 0.5% 183% 55%

Respuesta :

dylant636 dylant636
  • 01-03-2019

power out / power in so 230/420 = 0.547619048 using sigfiges its about .55 or 55%

Answer Link
abrahamruiz49 abrahamruiz49
  • 10-05-2019

Answer:

55%

Explanation:

Answer Link

Otras preguntas

An allergic reaction may increase the number of what?
use reference angles to find the exact value of tan 405 deg
The 3 items are on sale for $15, $16.95, and $20How to correct this sentence by editing the numbers for the correct form, figures or words
How do you simplify 11c + 3(-5c + 4d)?
a woman has $1.70 in dimes and nickels.She has 5 more dimes than nickles. How many nickles does she have
What are 2 thirds of 800
What is the ratio 1.12 turned in to a fraction in simplest form?
The organ system that consists of ductless glands that secrete hormones and the molecular receptors on target cells that respond to the hormones is known as the
what forces led to the rise of the mongols?
the highest recorded temperature in the uk is 39° c. the lowest recorded temperature in the uk is - 27° c What is the difference between these two amounts?