LilSkytheScienceGuy LilSkytheScienceGuy

15-01-2019
Physics

contestada

ANSWER PLZZZ

Dan does 188.0 J of work raking leaves. If the rake does 128.0 J of work, what is the efficiency of the rake?

A. 68.1 percent

B. 147.0 percent

C. 60.0 percent

D. 316.0 percent

A force of 29.0 N is used to lift a baby through a distance of 0.500 m. How much work is done on the baby?

A. 29.5 J

B. 58.0 J

C. 14.5 J

D. 28.5 J

Respuesta :

seham66 seham66

22-01-2019

I'm not sure , but I think that question number one is a and question number two is c

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