Which statement is true about the centripetal force acting on a body moving at a constant speed in a circle?

a. it has no centripetal force.

b. it has a centripetal force that is directed radially and outward.

c. it has a centripetal force that is directed radially and inward.

d. it has a centripetal force that is directed tangentially.

While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.

On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)

Why should the wavelength scale of spectroscope be calibrated