Physics PS1

# Physics PS1 - and finish line that will result in an error...

This preview shows page 1. Sign up to view the full content.

Physics Dept, Stanford University Fall 2011 Physics 45 Problem set #1, due Friday Sept 30, 2011, by 6PM This first problem set is shorter than usual in consideration of the fact that it is assigned on Mon. 1. A sprinter can cover a distance of 100m in 10s (these days men do somewhat better, but we like round numbers that keep the math simple). Here we are only concerned with establishing a record (ie we do not care who wins the race). The time from the gun shot to the arrival is usually measured with a 10ms uncertainty. What is the uncertainty on the length of the track (ie on the distance between start
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: and finish line) that will result in an error on the velocity measurement equal to that due to the measurement of time? 2. How many hydrogen atoms are in a 1 liter bottle of water? (I do not need more than 2 significant figures!) 3. In the lab you measure the density of a rock by measuring its mass and its volume. If the mass is 12.65 grams and the volume is 4.3 cm 3 calculate the density with the proper number of significant figures . 4. You want to measure the thickness of a sheet of paper but you only have a ruler. How do you do your measurement?...
View Full Document

## This note was uploaded on 10/04/2011 for the course ECON 101 taught by Professor Capelli during the Winter '10 term at University of Michigan.

Ask a homework question - tutors are online