Instructions: On occasion, the notation will be a shorthand notation for .

If two collinear vectors   and  are added, the resultant has a magnitude equal to 4.0. If   is subtracted from , the resultant has a magnitude equal to 8.0. What is the magnitude of ?

A. 2.0
B. 3.0
C. 4.0
D. 5.0
E. 6.0


Answer: A

Physics & Space Science

You might also like to view...

Earth's primary atmosphere was probably mostly ____________, ____________, and ______________

Fill in the blank(s) with correct word

Physics & Space Science

How do we know sunspots have magnetic fields?

A. Wien's law B. the Zeeman effect C. We have measured the sunspots' fields with spacecraft. D. the Hubble effect E. None of these choices is correct.

Physics & Space Science

What is the equivalent resistance between points a and b when R = 30 ??

A. 27 ? B. 21 ? C. 24 ? D. 18 ? E. 7.5 ?

Physics & Space Science

When a ball undergoes a one-dimensional elastic collision with a wall, the velocity of the ball is reversed, while the wall remains stationary. Explain why this does not violate conservation of momentum

What will be an ideal response?

Physics & Space Science