Which of the following can be a centripetal force? a.
friction
c.
tension
b.
gravity
d.
all of the above

Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature

Ahockey puck sliding along frictionless ice with speed v to the right collides with a horizontal spring and compresses it by 3.0 cm before coming to a momentary stop.

Every winter i fly home to chicago. it takes 3 hours. what is my average speed?