This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: 1. [1pt] An angstrom is an older unit of length, defined as 1010 m. A ly is a lightyear, 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: 1.23E03 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. Correct, computer gets: 2.60E+00Correct, computer gets: 2....
View
Full
Document
This note was uploaded on 11/07/2010 for the course PHYS 1120 taught by Professor Rogers during the Spring '08 term at Colorado.
 Spring '08
 ROGERS
 Physics, Light

Click to edit the document details