The color of an object appears to a person is caused by what phenomenon? A. The wavelengths of light reflected from the object.

B. The wavelengths of light created by the object.

C. The wavelengths of light refracted by the object.

D. The color of an object is not related to light.

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.