1. A boy throws a ball vertically at a velocity of 4.8 ms. (a) How long is it before he catches it again?
(b) What will be the ball's greatest height above the point
of release?

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

Argon, neon, and xenon are examples of

The process of predicting values that extend beyond the range of data points is called absolute value extrapolation interpolation prediction for any given: )