Which best describes what happens when light traveling through air enters water at an angle?

a. it moves along straight lines in air and changes direction when it enters water.

b. it moves in a curve in air and moves in straight lines when it enters water.

c. it moves along straight lines in air and continues along the same lines when it enters water.

d. it moves in a curve in air and continues moving in the same curve when it enters water.

Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

How much force was applied to an object if was moved 2 meters and the work done on the object was 8 joules? a. 0.25 n b. 4 n c. 6 n d. 16 n