Anight lamp uses a 30 w bulb. if it is left on continuously for 8 hours, how much energy will it use?

kwh

the answer was 0.24!

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped

Astep up transformer has 250 turns on its primary and 500 turns on it secondary. when the primary is connected to a 200 v and the secondary is connected to a floodlight that draws 5a, what is the power output? show all of your work.

Explain how a step-down transformer makes electricity safe for use in homes