physics

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)?

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

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posted by David D.
2. 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.

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posted by drwls
3. 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?

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posted by ashley
4. Use "Post a New Question" for this.

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posted by drwls

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