Physics

At 7.65 cents per kilowatt-hour, what does it cost to operate a 8.00 hp motor for 7.00 hr?

asked by Kyle
  1. cost= rate*energy*time
    = .0765*8hp*.745kwatts/hp*8hr=almost four bucks

    posted by bobpursley

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    At 7.65 cents per kilowatt-hour, what does it cost to operate a 10.0 hp motor for 6.00 hr? At 7.65 cents per kilowatt-hour, what does it cost to leave a 75.0 W light burning 24.0 hours a day?
  2. AP Physics 1

    If electrical energy costs 12 cents, or $0.12, per kilowatt-hour, how much does it cost to operate an electric over for 5.0 h if it carries a current of 20.0 A at 220 V?
  3. Chemistry

    Assume electricity cost 15 cents kw per hour....using the energy requirements.what is the per gram cost of energy to produce Na + AL? Useful info: 2NaCL --> 2Na + CL2 around 600 degree C; 14 KJ per g Na. Al- 2Al2O3-->4Al+3O2
  4. physics

    At 7.35 cents per kiloway hr, A. what does it cost to operate a 10.0 hp motor for 8.00 hr? B. What does it cost to leave a 75W light burning 24 hr a day?
  5. physics

    At 7.15 cents per kilowatt-hour, what does it cost to leave a 75.0W light burning 24.0 hours a day?
  6. algebra

    The cost of operating an appliance varies jointly as the number of watts, hours of operation, and the cost per kilowatt-hours. It costs $0.45 to operate a 3000-watt air conditioner for 2 hours at a cost of $0.075 per
  7. Physics

    One kilowatt-hour (kWh) is the amount of work or energy generated when one kilowatt of power is supplied for a time of one hour. A kilowatt-hour is the unit of energy used by power companies when figuring your electric bill.
  8. physics please help

    one kilwatt/hour (kWh) is the amount of work or energy generated when one kilowatt of power is supplied fr a time of one hour. a kilowatt/hour is the unit of energy used by power companies when figuring your electric bill.
  9. Physics

    A 60 W light bulb at 120 V is left on in your house to prevent burglary, and the power charges 10 cents per kilowatt-hour, how much will it cost to leave the bulb on for 30 days? Please show how to work this
  10. physics

    A small motor draws a current of 1.76 A from a 110 V line. The output power of the motor is 0.20 hp. (a) At a rate of $0.060/kWh, what is the cost, in cents, of operating the motor for 4.0 h? (b) What is the efficiency of the

More Similar Questions