If you want to have better frost protection, you can add an excess of 0.0200 moles of salt or 0.0200 moles of sugar. Explain which would result in the greater frost protection – sugar or salt. Justify your response.

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.