A certain motor uses 1300J of energy to raise a 30kg mass to a height 2.4 meters above where it started.
a) How much potential energy does the mass gain during the lift b) calculate the efficiency of this motor

first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.

conduct current i mean it makes sense