Monday
September 1, 2014

Posts by elliott


Total # Posts: 10

Calculus
An object is traveling along the x axis so that its speed is given by v(t)=t^2-7t+10 m/s. (a) Find the times when the object is at rest. (b) Find the acceleration at both of these times. Interpret the acceleration in terms of the motion of the object, ie whether the object is ...
May 14, 2013

Calculus
An object is traveling along the x axis so that its speed is given by 2 v(t) t 7t 10 m/s. (a) Find the times when the object is at rest. (b) Find the acceleration at both of these times. Interpret the acceleration in terms of the motion of the object, ie whether the object is ...
May 14, 2013

Chemistry
28.02g N2 32.00 g O2 39.95 g Ar Using the percentage abundances of each gas, multiply each gases abundance by their molar mass. molar mass of air=28.02(.78)+32(.21)+39.95(.01) = 28.98 g/mol. using two sig figs =29 g/mol
November 1, 2012

Chemistry
I've seen the posts on solving this particular equation, and I know the answer is right in front of me. I'm still having trouble understanding why... a 42g piece of ice at 0.0 degrees C is added to a sample of water at 7.8 degrees C. All the ice melts and the ...
September 22, 2012

World history
Causes and consequences of world war 2
May 20, 2011

science
a block of aluminium at room temp is 20cm when heated it increases to 25cm when back to room tempthe volume returns to20cm why does this happen
October 16, 2010

Physics
setting it up
March 1, 2010

Science
A cross of a black chicken with a white chicken produces all speckled offspring. This type of inheritance is known as.....
December 16, 2007

again...
how about this sentence? After breakfast, before we'd had time to scatter. Is that we would? One way to tell is to read the sentences aloud to yourself without the contraction. It'll be obvious to you. After breakfast, before we had had time to scatter ... or After ...
November 7, 2006

english
"we'd walked three blocks..." for that sentence, what does we'd mean? we would or we had? In that sentence, it means "we had." =) thanks writeacher.
November 7, 2006

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