Which statements about rainbows are true? Choose more than one answer. A. They are caused by light diffracting around water molecules

B. Red light and violet light refract at different angles

C. Sunlight slows down as it enters water droplets in the sky

D. They are a type of interference pattern

E. Sunlight passes through a substance that is denser than air

F. Refracted sunlight creates their arcs

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?