Which of the following statements is true?
a. nuclear energy is an inexhaustible resource since there is an unlimited amount of uranium.
b. solar energy is an inexhaustible resource since it is fueled by the sun.
c. coal is an inexhaustible resource since it forms from the fossilized remains plants and animals and more plants and animals die every day.
d. wood is an inexhaustible resource since we can always plant more trees.

You are driving to the grocery store at 20 m/s. you are 110m from an intersection when the traffic light turns red. assume that your reaction time is 0.50s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes? what acceleration will bring you to rest right at the intersection? how long does it take you to stop after the light changes? the known values: vi=20m/s xi=110m t=.50s vf=0m/s xf=0m a=?