Physics 161 – Summer 2005 Homework 1

E. Gortcheva Due June 3, start of class

Read Serway & Jewett (S&J): app. B and chaps. 1, 3, 7.3, 11.1, and 2.

1. S&J 1.10

2. If " Ј " is defined as

Ј = d³ x / dt³

where x has dimensions of [L] and t has dimensions of [T], what are the dimensions of J?

3. In the equation

Φ = tan^-1 (Rgcos(θ)/v²)

g has dimensions of [L/T²] and R has dimensions of [L].

(a) What are the dimensions of θ?

(b) What are the dimensions of v?

(c) What are the dimensions of Φ?

4. S&J 1.16

5. S&J 1.24

6. S&J 1.28

7. S&J 1.34

8. S&J 1.46

9. S&J 1.54