In 1994, susan williams of california blew a bubble-gum bubble with a diameter of 58.4 cm. if this bubble were rigid and the centripetal acceleration of the equilateral points of the bubble were 8.5*10^-2 m/s^2, what would the tangential speed of those points be?

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.