Is the distance a baseball travels in the air after being hit distance a baseball travels in the air after being hit a discrete random variable, a continuous random variable, or not a random variable?

Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

Most short-period comets do not have randomly oriented orbits because