Find the absolute and percent errors in a measurement of the boiling point of bromine if the laboratory figure is 51.2°c and the actual value is 59.35°c.

In a system, when potential energy decreases, then entropy also decreases. true false

Which of the following is an example of motion in two dimensions?

You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?