Suppose we want to calculate the total mass of two objects. The mass of object 1 is x and is estimated to be 79 + 1g while the mass of Object 2 is y and estimated to be 65 + 2g. How should the total mass, z=x+y be reported? Answer: The total mass of the object is approximately 79g+65g = 144g. But the total mass can be as high as 80 g + 67 g= 147 g or as low as 78 g + 63 g = 141 g. The total mass should therefore be reported as 144 + 3g. %3D Study it carefully because the process is the same with the mass difference. Why don't you try it on your own? From the example problem above, how should the difference in mass, z = x - y, be reported? (Note that the symbol z now denotes the difference instead of the sum of two measurements).

Suppose we want to calculate the total mass of two objects. The mass of object 1 is x and is estimated to be 79 + 1g while the mass of Object 2 is y and estimated to be 65 + 2g. How should the total mass, z=x+y be reported? Answer: The total mass of the object is approximately 79g+65g = 144g. But the total mass can be as high as 80 g + 67 g= 147 g or as low as 78 g + 63 g = 141 g. The total mass should therefore be reported as 144 + 3g. %3D Study it carefully because the process is the same with the mass difference. Why don't you try it on your own? From the example problem above, how should the difference in mass, z = x - y, be reported? (Note that the symbol z now denotes the difference instead of the sum of two measurements).

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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