Which of the following represents a velocity? 40 m
40 m north
40 m/s
40 m/s north

Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine

A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?

In an experiment, how can i change human errors? be specific.