Consider the following vectors in polar form. |u| = 2 at ∠0° |v| = 4 at ∠45° What is the magnitude of vector w, if w = u – v? |w| = 2. 77 |w| = 2. 95 |w| = 3. 58 |w| = 5. 60.

Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon

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?

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.