3. What is the total mechanical energy of that ball in the ball return when it comes back from striking the pins if it is .8m above the ground and moving at 1.2m/s?o
ME=mgh + 1/2mv^2 m=6kg
ME= 6kg(9.8m/s^2)(0.8) + 1/2(6kg)(1.2m/s)

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

i just did an experiment like this in my science class. also the answer is yes, it will get separated because they are two opposites meaning if they are opposite they can not attract.

hope this .!

i think the answer would be reserve.