If an engine must do 500 joules of work to pull a 100 N load up to a height of 4 meters, What is the efficiency of the engine?
Physical Science - bobpursley, Saturday, November 14, 2009 at 3:29pm
eff=workout/workin = 4*100/500 * 100=80percent
Physical Science - Wendy, Saturday, November 14, 2009 at 3:40pm
The force of gravtitation between two objects is 500 Newtons. What would the force of gravitation be if the distance between these to objects increased by 10 times?
Physical Science - Lakeshia Moorehead, Friday, November 19, 2010 at 8:05am