Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter1: Getting Started
Section: Chapter Questions
Problem 35PQ
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Question
1. Find the percent uncertainty of 300±5 cm. How will you write the value of the measurement?
2. How do you write the following numbers in scientific notation or power of ten notation?
a. 0.000123
b. 3,141,600,000
c. 1,005,000
d. 0.000000007
e. 100,000,000
3. Determine the number of significant figures in the following measurements.
a. 0.00624
b. 300.1
c. 62,000.00
d. 1.0100
e. 10.01
4. Convert the following measurements to the mks(m-kg-s) system of units.
a. 20 g/cm3
b. 100 km/hr
c. 980 cm/s2
d. 0.5 kg/cm
5. Using dimensional analysis, check which of the following equations is or are correct.
a. d = (1/2)at
b. mgh = (1/2)mv2
c. a = v2/t
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