a 980 kg roller coaster cart is traveling along a track at 17 m/s before it rolls down a 30 m tall hill (point a). what will be its kinetic energy
when it is halfway down the hill (15 m) at point b?

if you answer my question i will answer yours

radial fractures in a piece of glass look most like which of the following?

a. spokes of a wheel

b. a circle

c. a zig zag

d. none of the above

the correct answer is a. spokes of a wheel

hope this (: