Tuesday
September 30, 2014

Homework Help: Physics 8B

Posted by HELP on Sunday, September 18, 2011 at 2:37pm.

A 280 electric motor is 90% efficient, meaning that 90% of the energy supplied to it ends up as mechanical work.

If the motor lifts a 210 weight at 3.5 , how much current does it draw?
Express your answer using two significant figures.
I= ? Amps

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics 8B - A 280 electric motor is 90% efficient, meaning that 90% of the ...
physics - A 120-V motor has mechanical power output of 2.20 hp. It is 92.0% ...
physics - A 120-V motor has mechanical power output of 3.20 hp. It is 81.0% ...
Physics - A 120-V motor has mechanical power output of 2.00 hp. It is 82.0% ...
PHYSICS. - 5. A motor lifts a 12 kg mass to a height of 15 m at a constant ...
Physics - a motor lifts a 12 kg mass to a height of 15 meters at a content ...
physics - two people carry a heavy electric motor by placing it on a light board...
physics - two people carry a heavy electric motor by placing it on a light board...
physics - two people carry a heavy electric motor by placing it on a light board...
physics - Two people carry a heavy electric motor by placing it on a light board...

Search
Members