lecture5_09 - Phy 2053 Announcements Homework 1 due Jan 21...

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1 Phy 2053 Announcements ± Homework 1 due Jan 21 is posted in webassign. It will count towards course grade. ± Optional solution manual: a limited number of copies is available at the UF bookstore, at ~ $54. It contains solutions to some but not all of the problems at the back of chapters; one copy on reserve at the Marston Science Library ± Yellow book (past exams and solutions) available at Target Copy for $16 ± Should have received email listing your clicker response. Clicker questions will count towards course grade starting Jan 27. Vectors in one dimension: positive or negative, and magnitude Vectors in two dimensions: direction and magnitude Vectors ± Equality of Two Vectors Two vectors are equal if they have the same magnitude and the same direction A v B v C v D v B A v v = C A v v D A v v Graphically Adding Vectors ± When you add vectors, just put the tail of one on the head on the next… ± The resultant is drawn from the origin of the first vector to the end of the last vector. R ur The order in which the vectors are added doesn’t affect the result R + =+ ABBA r rrr Commutative law of addition Scalar Multiplication ² The result of the multiplication or division of a vector by a scalar is a vector-the magnitude of the vector is multiplied or divided by the scalar
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lecture5_09 - Phy 2053 Announcements Homework 1 due Jan 21...

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