Correct answer only !

a roller coaster car is traveling down a track at 22 m/s. the car has a mass of 2000 kg. what is the kinetic energy of the car?

Hi again!

The correct answer for the kinetic energy of the car is 484,000 joules.

We can find this by using the formula. The formula for kinetic energy is m

Knowing this we can fill in the formula using the info we were provided. Doing this we get: (2,000 · )

= 484

2,000 · 484 = 968,000

· 968,000 = 484,000

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Question 9: Anthony has more power than Angel

We can see Anthony gets done with the same work quicker than Angel. But they did the same amount of work, just Anthony was quicker. Power is the rate at which work is done. Knowing this we can see the answer is Anthony has more power than Angel.

I hope those answers help u!

Good luck! :)

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6