physics

posted by .

Calculate the cost of operating a 65 W light bulb continuously for a 30-day month when electrical energy costs $0.23/kW·h.
$ 1

  • physics -

    Cost =(65•10^-3) •30•24•0.23 =$10.76

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    You can buy an energy-saving light bulb for $18.07, which can work for 10,000 hours. It costs you 0.8 cents to operate it for an hour. ($1=100 cents). A regular light bulb with the same intensity costs 39 cents. The light bulb can …
  2. physics

    It has been proposed to use large inductors as energy storage devices. How much electrical energy is converted to light and thermal energy by a light bulb with a power of 195 W in one day?
  3. Physics

    A special kind of light bulb emits monochromatic light of wavelength 630 nm. Electrical energy supplied to it at the rate of 60W, and the bulb is 93% efficient at converting that energy into light energy. How many photons are emitted …
  4. physics

    An energy-efficient lightbulb, taking in 25.0 W of power, can produce the same level of brightness as a conventional bulb operating at power 100 W. The lifetime of the energy-efficient bulb is 10,000 h and its purchase price is $17.00, …
  5. physics

    Calculate the cost of operating a 65 W light bulb continuously for a 30-day month when electrical energy costs $0.23/kW·h. $ 1 How do you calculate cost?
  6. physics

    An oven is plugged into a 120 V electrical outlet and "cooks" the food by using a 144 ohm resistor light bulb that converts electrical energy to both light and heat energy. If the light bulb converts 75% of the electrical energy to …
  7. physics

    The Easy Bake Oven is a common toy for young children who want to emulate the process of cooking. Suppose this oven is plugged into a 120 V electrical outlet and "cooks" the food by using a 144 ohm resistor light bulb that converts …
  8. Physics Energy

    How would a $10.00 compact fluorescent light bulb (15 W) be an overall money saver compared to an incandescent light bulb (60 W) that costs $0.50?
  9. science.......

    An electric bulb is marked 220v60w. An ammeter in the circuit shows the bulb uses a current of 0.2727A. The bulb burns for an hour. Calculate the following: A. The electrical energy consumption B. The cost for the bulb to burn for …
  10. Physics

    a 75 w compact fluorescent bulb operating at 30% efficiency. Calculate the amount of energy lost to heat and the amount of energy converted into light after the bulb has been on for 2.0h.

More Similar Questions