p

posted by .

If a lightbulb uses 60 watts of power. If the light bulb is run for 5 hours everyday of a 30-day month how much energy did the lightbulb use? Answer in k Wh.

  • Science -

    Assistance needed.

    Please type your subject in the School Subject box. Any other words are likely to delay responses from a teacher who knows that subject well.

  • physics -

    Total energy used
    = 60 watts * 5 hr/day * 30 days
    = 9000 watt-hours
    = 9 kilowatt-hours

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    A student conducted an experiment to determine the resistance of a lightbulb. while performing the experiment the student noticed that the lightbulb began to glow and became brighter as she increased the voltage. of the factors affecting …
  2. physics em

    The corroded contacts in a lightbulb socket have 8.20 Omega resistance. How much actual power is dissipated by a 105 W (120 V) lightbulb screwed into this socket?
  3. Physics 103

    How do I solve this problem: You buy a 75W lightbulb in Europe where electricity is delivered to homes at 240V. If you use the lightbulb back in the USA at 120 V, what will it's power output be?
  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. Science

    1. An electric space heater draws 15.0 A from a 120 V source. It is operated, on average, for 5.0h (hours) each day. a) How much power does the heater use and b) At $.10 per kWh, what does it cost to operate the heater for 30 days?
  6. college chemistry

    Assuming that 9.0\% of the energy output of a 65W lightbulb is visible light and that the average wavelength of the light is 550 {\rm nm}, how many photons are emitted by the lightbulb each second?
  7. chemistry

    A 100 w lightbulb is place in a cylinder equipped with a moveable piston. The ligshtbulb is turned on for 0.015 hours, and the assembly expands from initial volume of 0.85 L to a final volume of 5.88 L against an external pressure …
  8. Physics

    A 100 watts light bulb has an average life of 2000 hours. How much energy does it consume over its lifetime?
  9. Physics

    A 100 watts light bulb has an average life of 2000 hours. How much energy does it consume over its lifetime?
  10. Physics-Answer Check

    You have an LED bulb that uses 4 watts of power and gives an output of 170 lumens. The operating voltage is 120 volts. Using this data, find the following. 1. What is the current that the LED bulb uses?

More Similar Questions