Answer to Question #328907 in Physics for nicole

Question #328907

How long (means time) must a 400 W electrical engine work in order to produce 300 kJ of work?

Expert's answer

The required time

"t=\\frac{W}{P}=\\rm\\frac{300\\:000\\: J}{400\\: W}=750\\: s"

Learn more about our help with Assignments: Physics

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. A 3 kg block moving to the right on a frictionless table at 4 m/s makes a head on collision with ano
2. Determine the precision of these two approximate valuesa) 32000ftb) 1.20×10(--5)ms
3. Y=0.3sin(0.5x-50t). what is the maximum displacement of the particles from the equilibrium portion
4. Cody’s car accelerates from 0m/s to 45 m/s northward in 15 seconds. What is the acceleration of th
5. What is the speed of sound in a helium gas at a pressure of 15000pa
6. How much potential energy will you have staying at the 4rth floor of theengineering building?Note; u
7. Determine the precision of these two approximate valuesa) 32000.Tonsb) 1.20×10(--5)ms