physics

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What is the kinetic energy of a 26 kg dog that is running at a speed of 8.4 m/s (about 19 mi/h)?

  • physics -

    Ke = .5mv^2 so the ke is .5(26)(8.4^2)= 917.28

  • physics -

    Can you calculate
    Kinetic Energy = (1/2) M V^2 ?

    The answer will be in Joules if you use the right units for M and V.

  • physics -

    A microwave oven has a power requirement of 1235 W. A frozen dinner requires 6.0 min to heat on full power.
    (a) How much electrical energy (in kWh) is used?
    1 kWh

    (b) If the cost of electricity is 12 cents per kWh, how much does it cost to heat the dinner?
    2ยข

  • physics -

    Use "Post a New Question" for this.

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