Please Answer Fast! (15 pts) (Thanks in Advance) When using the "ball and stick" drawing method of drawing a compound, which element usually goes in the center of the model?

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?

The government has declared that a hurricane is likely to hit the east coast. which government division is part of acf and provides guidance to citizens? a. job opportunities for low-income individuals b. office of human services emergency preparedness and response c. assets for independence d. low-income home energy assistance program

What is friction? how does it affect the motion of an object?