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.

Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below.your friend goes first,and you follow after he has dropped a distance of 2.0m.when your friend hits the water,is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.

Ascientific blank must be testable and capable of being proven false?

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )