What is the acceleration of a 50 kg object pushed with a force of 500 newtons? known? unknown? calculation? answer? units? equation?

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?

Which statements best describe energy? check all that apply. the total amount of energy in the universe remains constant. the total amount of energy in the universe changes constantly. energy cannot be converted from one form to another. energy can be converted from one form to another. energy cannot be created or destroyed. energy can be created or destroyed.

All phase changes are .an example of a phase change is an ice cube melting