There are two balls the same size and appear to be made from the same material although one ball is heavier. If you roll them down a hill and found that the heavier ball has a mass of 20 Kg and rolled 25 m/s2. How much force will the ball have at the end of the hill?

Why the fortune tellers never win the lottery

What are segments of dna that code for a particular trait. a combination of dna and proteins make up what

The place you get your hair cut has two nearly parallel mirrors 6.00 m apart. as you sit in the chair, your head is 2.00 m from the nearer mirror. looking toward this mirror, you first see your face and then, farther away, the back of your head. (the mirrors need to be slightly nonparallel for you to be able to see the back of your head, but you can treat them as parallel in this problem.) how far away does the back of your head appear to be?