Ahorizontal clothesline is tied between 2 poles, 14 meters apart. when a mass of 4 kilograms is tied to the middle of the clothesline, it sags a distance of 3 meters. what is the magnitude of the tension on the ends of the clothesline? tension =

Which best describes the difference between internal and thermal energy?

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.

What is the frequency if a wave that pases a given pount 22 times in 2 seconds