What happens to a light wave that travels through glass and strikes a boundary with water at a 45° angle?
A. It refracts in the water, toward the boundary.
B. It reflects back into the glass in the direction it was traveling from
C. It reflects back into the glass with a 45° angle of reflection.
D. It refracts in the water, away from the boundary.

Amachinist needs to remove a tight fitting pin of material a from a hole in a block made of material b. the machinist heats both the pin and the block to the same high temperature and removes the pin easily. what statement relates the coefficient of thermal expansion of material a to that of material b? a) the situation is not possible, heating block b will shrink the hole in the material as the material expands with increasing temperatureb) material b has the same coefficient of expansion as does material ac) material b has a negative coefficient of expansion and a has a positive coefficient of expansiond) material a has a greater coefficient of expansion than does material be) material b has a greate

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final