Mari places a marble at the top of a ramp and lets it go. it rolls down. at the bottom of the ramp, the marble bumps into a block. the block moves. she measures how far the block moves and writes her results in a chart. what are three things that mari could do to increase the distance the block moves when the marble bumps it?

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?

Rohit is trying to tune an instrument

Ethanol has a heat of vaporization of 38.56 kj/mol and a normal boiling point of 78.4 c. what is the vapor pressure of ethanol at 14 c?