# CAPA 1 - 1[1pt An angstrom is an older unit of length defined as 10-10m A ly is a light-year the distance light travels in 1 year(Give ALL correct

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1. [1pt] An angstrom is an older unit of length, defined as 10 -10 m. A ly is a light-year, the distance light travels in 1 year. (Give ALL correct answers, i.e., B, AC, BCD. ..) A) 8.0ly = 7.6x 10 27 angstrom B) 5.0m = 5.0x 10 11 angstrom C) 3.0 angstrom = 30nm D) 9.0 angstrom = 9.0x 10 5 fm E) 9.0 angstrom = 9.0x 10 6 fm F) 3.0 angstrom = 0.3nm G) 8.0ly = 7.6x 10 26 angstrom H) 5.0m = 5.0x 10 10 angstrom Correct, computer gets: DFGH 2. [1pt] Calculate the volume of a spherical balloon which has a surface area of 0.0555 m 2 . Area and Volume relations Correct, computer gets: 1.23E-03 m^3 Hint: The area of a sphere is given by 4 times pi times r squared. this allows you to calculate the radius. then, the volume of a sphere is given by: 4/3 pi r cubed. 3. [1pt] (This is a tough one! Read the hint which appears after you submit one wrong answer.) The graph on your paper represents the function F(x)=ax b Make a careful determination of the value of b. You have to get within 10\% of the correct answer to get credit.

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Correct, computer gets: 2.60E+00
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## This note was uploaded on 11/07/2010 for the course PHYS 1120 taught by Professor Rogers during the Spring '08 term at Colorado.

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CAPA 1 - 1[1pt An angstrom is an older unit of length defined as 10-10m A ly is a light-year the distance light travels in 1 year(Give ALL correct

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