September 29, 2016

Posts by Barry

Total # Posts: 105

a) .0225 b) =1-P(x=0)=.0445 c) I do not know.
October 3, 2007

what are the pros and cons of joining "netville 2" a computer company that came to your neighbourhood. We will be happy to critique your thinking on this. thanks im having trouble thinking of cons. The only thing i have for cons are: hidden fees and isolation and i ...
April 21, 2007

A bat flying in a cave emits a sound and receives its echo 0.5 s later. How far away is the cave wall? I answered this below. If you cant find it, search on bat flying in the search window above.
November 5, 2006

A skipper on a boat notices wave crests passing his anchor chain every 9 s. He estimates the distance between wave crests to be 15 m. He also correctly estimates the speed of the waves. What is this speed? Wavelenght* frequency= wave speed remember that frequency here is 1wave...
November 5, 2006

A car crashes into a wall at 20 m/s and is brought to rest in 0.1 s. Calculate the average force exerted on a 75 kg test dummy by the seat belt. Force*time= change in momentum mv solve for force.
September 27, 2006

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