Which 3 years had the highest temperatures in the hemisphere in
which you live?

a. What were the temperatures in
these years?
b. Which 3 years had the lowest
temperature in the hemisphere in
which you live?
C. What were the temperatures in
these years?

Consider a small frictionless puck perched at the top of a fixed sphere of radius r. if the puck is given a tiny nudge so that it begins to slide down, through what vertical height will it descend before it leaves the surface of the sphere? [hint: use conservation of energy to find the puck's speed as a func e conservation of energy to find the puck's speed as a function of its height at what value of this normal force does the puck leave the sphere? ] here on the puck.