A man roller skates up a hill at 12.5 m/s but slows down, comes to a stop and then accelerates back down the hill until he is going 13.7 m/s the other direction. Assuming the acceleration is constant and this take 18.3 s, what is the man's displacement?

Which transition by an electron will release the greatest amount of energy? oa ob oc od

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?

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) ! : )