A light wave traveling through medium 1 strikes a boundary with medium 2 at
a 45° angle. The light then enters the second medium and refracts away from
the boundary. What could the two mediums be?
A. Medium 1: water
Medium 2: air
B. Medium 1: glass
Medium 2: water
C. Medium 1: glass
Medium 2: diamond
D. Medium 1: diamond
Medium 2: air

What are the phases shown in a and d called?

50 g of ice at 0°c is dropped in a beaker containing 100 g of water at 0°c. what will be the contents of the beaker after 5 hours? assume that the room temperature is 0°c.

Which statements about tornadoes are true? check all that apply. (a) about 12,000 tornadoes hit the united states every year. (b) a tornado looks like a funnel. (c) tornadoes are deadly atmospheric storms that cause millions in damages each year. (d) tornadoes can reach wind speeds of more than 300 miles per hour. (e) kansas is the state with the most tornadoes. (f) you will always notice a funnel before a tornado strikes.