Question

help please






How much work would it take to do 270 N-m of work with a machine that has an efficiency rating of 90%?

30 N-m
3000 N-m
270 N-m
300 N-m

Answer 1

answer ---> 270/0.9

Answer 2

so its c?

Answer 3

yes

Answer 4

THanks can you help with 1 more

Answer 5

i can try

Answer 6

so how do i solve this one

How much work will it take to move a 200 N object to its destination 30 m away?

12,000 N-m
600 N-m
6,000 N-m
230 N-m

Answer 7

work = force*distance
I think you should multiply 200 by 30.