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assignment_ind Small White Board Question

10 min.

Dot Product Review
This small whiteboard question (SWBQ) serves as a quick review of the dot product. It is also an opportunity to help students see the advantages of knowing many different representations of and facts about a physical concept.

assignment Homework

Vectors
vector geometry

Let \begin{align} \boldsymbol{\vec a} &= \boldsymbol{\hat x}-3\boldsymbol{\hat y}-\boldsymbol{\hat z}\\ \boldsymbol{\vec b} &= \boldsymbol{\hat x}+\boldsymbol{\hat y}+2\boldsymbol{\hat z}\\ {\boldsymbol{\vec c}} &= -2\boldsymbol{\hat x}-\boldsymbol{\hat y}+\boldsymbol{\hat z}\\ \boldsymbol{\vec d} &= -\boldsymbol{\hat x}-\boldsymbol{\hat y}+\boldsymbol{\hat z} \end{align}

Which pairs (if any) of these vectors

  1. Are perpendicular?
  2. Are parallel?
  3. Have an angle less than \(\pi/2\) between them?
  4. Have an angle of more than \(\pi/2\) between them?

group Small Group Activity

30 min.

Vector Integrals (Contour Map)

E&M Path integrals

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