Monday
October 20, 2014

Homework Help: physics

Posted by natali on Monday, October 22, 2007 at 3:14am.

A 100W light bulb is left on for 10hrs. Over this period of time how much energy is used by the bulb?
am i doing this right?

my guess is to convert 100W to kW
and convert 10 hrs to seconds and multiply the 2 together?
which gives 3600J or should i just leave it in watts?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

natali - A 100W light bulb is left on for 10hrs. Over this period of time how ...
physics....again - A typical light bulb is 2% efficient. It means that only 2% ...
Physics - A 100-Watt light bulb plugged into a 120-Volt outlet is left on for ...
Physics - A special kind of light bulb emits monochromatic light of wavelength ...
physics - An energy-efficient lightbulb, taking in 25.0 W of power, can produce ...
physics - You are in the lab with a 10 V battery. You have a 10 W light bulb and...
college physics - You are in the lab with a 10 V battery. You have a 10 W light ...
physics - An oven is plugged into a 120 V electrical outlet and "cooks" the ...
Physics - Can you plz help! - a) a flashlamp bulb is marked '2.5V,0.30A' and has...
physics - A light bulb is wired in series with a 133-Ω resistor, and they ...

Search
Members