College Physics

Figure 1.17Distances given in unknown units are maddeningly useless. There are two major systems of units used in the world:SI u ...

The Meter The SI unit for length is themeter(abbreviated m); its definition has also changed over time to become more accurate a ...

Table 1.2Metric Prefixes for Powers of 10 and their Symbols Prefix Symbol Value[1] Example (some are approximate) exa E 1018 exa ...

Figure 1.21Galaxies collide 2.4 billion light years away from Earth. The tremendous range of observable phenomena in nature chal ...

Table 1.3Approximate Values of Length, Mass, and Time Lengths in meters Masses in kilograms (more precise values in parentheses) ...

Discussion for (a) To check your answer, consider the following: (1) Be sure that you have properly cancelled the units in the u ...

1.3 Accuracy, Precision, and Significant Figures Figure 1.22A double-pan mechanical balance is used to compare different masses. ...

Figure 1.24A GPS system attempts to locate a restaurant at the center of the bull’s-eye. The black dots represent each attempt t ...

Example 1.2 Calculating Percent Uncertainty: A Bag of Apples A grocery store sells5-lbbags of apples. You purchase four bags ove ...

Zeros Special consideration is given to zeros when counting significant figures. The zeros in 0.053 are not significant, because ...

(a) A woman has two bags weighing 13.5 pounds and one bag with a weight of 10.2 pounds. What is the total weight of the bags? (b ...

Example 1.4 Approximating Vast Numbers: a Trillion Dollars Figure 1.27A bank stack contains one-hundred $100 bills, and is worth ...

accuracy: approximation: classical physics: conversion factor: derived units: English units: fundamental units: kilogram: law: m ...

units :a standard used for expressing and comparing measurements Section Summary 1.1 Physics: An Introduction Science seeks to ...

Problems & Exercises 1.2 Physical Quantities and Units 1.The speed limit on some interstate highways is roughly 100 km/h. (a ...

Figure 1.28This color-enhanced photo showsSalmonella typhimurium(red) attacking human cells. These bacteria are commonly known f ...

2 KINEMATICS Figure 2.1The motion of an American kestrel through the air can be described by the bird’s displacement, speed, vel ...

Introduction to One-Dimensional Kinematics Objects are in motion everywhere we look. Everything from a tennis game to a space-pr ...

Figure 2.3A professor paces left and right while lecturing. Her position relative to Earth is given byx. The+2.0 mdisplacement o ...

Misconception Alert: Distance Traveled vs. Magnitude of Displacement It is important to note that thedistance traveled, however, ...