College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:Exam 1.pdf
Exam 1
Q1: Which of the following is NOT an SI unit?
b. kilogram
c. second
d. mile
a. meter.
Q2: Write these values as full decimal numbers (not using scientific notation), in standard SI
units without any prefixes, preserving the number of significant figures.
a) 630 us.
b) 42400 km
Q3: A football wide receiver starts from rest and runs straight forward 24.0 meters in 2.80
seconds at a constant acceleration.
a) How large was his average velocity?
b) How large was his acceleration, in m/s2?
c) How long did it take for the wide receiver to travel the first 12.0 meters?
Q4: A car is accelerated from rest to a velocity of 75 km/h over a distance of 2500 m. (a) How
long did the acceleration last? (b) Calculate the acceleration.
Q5:
1) Show that a is perpendicular to b when
a =i+j+3k.
b= 2i + 7i - 3k
2) Find the angle between c and d when
c=i+ 2j + 3k.
d = 2i + 4j – 3k
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