If it is subjected to a torque of m = 25 lb⋅ft, and starts from rest when the torque is applied, determine its angular velocity in 3 seconds. the coefficient of kinetic friction between the reel and the horizontal plane is μk = 0.15.

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive