Thursday
October 23, 2014

Homework Help: physics

Posted by Becky on Wednesday, February 2, 2011 at 6:13pm.

How many joules of energy are required to run a 100 W light bulb for one day? Burning coal yields about 30x10 to the 8J of energy per kilogram of coal burned. Assuming that the coal power plant is 30% efficient, how much coal has to be burned to light the bulb for one day?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - A power plant burns coal and generates an average of 600.0 Megawatts (...
science-physics - Q1)which of these energy resources does not originate from the...
physics-energy conservation - a mordern power station,or, more correctly, an ...
Stout - A chocolate chip cookie contains about 200 kcal. How many kilowatt-hours...
Physics - A special kind of light bulb emits monochromatic light of wavelength ...
physics - It has been proposed to use large inductors as energy storage devices...
Physics - A 100-Watt light bulb plugged into a 120-Volt outlet is left on for ...
physics - An oven is plugged into a 120 V electrical outlet and "cooks" the ...
physics - An energy-efficient lightbulb, taking in 25.0 W of power, can produce ...
physics - The amount of energy dissipated by a 100-W bulb in a common parallel ...

Search
Members