EM306_Quiz0_ans

EM306_Quiz0_ans - EM306 Quiz #1 September 2008 Name:_...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
EM306 Quiz #1 September 2008 Name:________________________ Section:_______________ 1. What is a vector? A mathematical quantity that has both magnitude and direction. 2. Let r be a vector quantity. If r = | r |, what does r represent? The magnitude of the vector. 3. If y = r r , what does y represent? A vector with unit magnitude in the direction of the vector. 4. What is a scalar? A quantity having only magnitude. Given two vectors a = i + 2 j + 3 k and b = 2 i + j + 2 k : 5. What is the sum of these two vectors? 3 i + 3j + 5 k 6. What is the dot product of these two vectors? 10 7. What is the cross product a ! b of these two vectors? i + 4j – 3 k
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Units 8. What is the SI system of units? SI stands for International System, the most widely accepted system of standard units in the world. We know that a meter is a unit of length. More specifically, meter is the unit of measure and length is the physical quantity we are measuring. What is the physical quantity we are measuring for each of the following units? 9.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/28/2008 for the course E M 306 taught by Professor Landis during the Spring '08 term at UT Arlington.

Page1 / 3

EM306_Quiz0_ans - EM306 Quiz #1 September 2008 Name:_...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online