# 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

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Use "Post a New Question" for this.

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