Answer:
Mark has a speed of 6 MPS (Miles Per Hour)
Explanation:
It took mark 2 hours to ride his bike to his grandma's house, which was 12 miles away. I divided 2 by 12 and got 6. Remember this: mph = miles away ÷ time.
Answer:
Wind
Explanation:
It's impossible for them to travel in a wave.
With the info given i would have to say their is no kinetic energy, it's all potential energy.
