Friday
March 24, 2017

Post a New Question

Posted by on Saturday, November 14, 2009 at 3:22pm.

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 - , Saturday, November 14, 2009 at 3:29pm

    eff=workout/workin = 4*100/500 * 100=80percent

  • Physical Science - , 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 - , Friday, November 19, 2010 at 8:05am

    10kg*9.81m/s^2=98.1N*4m=392.4J
    392.4J/500=78.48% efficiency

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question