Thursday
December 5, 2013

# Posts by Chelsey

Total # Posts: 55

chemistry
calcululate the molality of CsCl in a 8% by mass aqueous solution. answer in units of m

Pre-Calc
2-2

Physics
A 27-pound meteorite struck a car in Peekskill, NY, creating a dent about 22 cm deep. If the initial speed of the meteorite was 550 m/s, what was the average force exerted on the meteorite by the car?

chemistry! URGENT!!!
A gaseous mixture of O2 and N2 contains 30.8 % nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 365 mmHg?

chemistry
the pressure on a gas at-73 Cis doubled, but its volume is held at constant. What will the final temperature be in degrees Cesius?

algebra
factor: x^2-11x+19=-5

Math-Calculus
i have to questions that just need to be checked on to see if i got them right. Lim x-->infinity for both problems 10/x+10 is number one i got 0 for this one. or is it does not exist. lim x-->infinity 6x/6x+5 for this one I got One. (1) is that correct.??

easy cal Q
Thanks! Exactly what I was looking for.

easy cal Q
lim x--->a x^2+a^2/x+a I know this equals (a) but I dont know how to explain my answer.

physics
A) m*v^2=kinetic energy m*72^2=7.6*10^7 m*(7.6*10^7)/(72^2)=14660.5kg B) p=w/t p=(7.6*10^7)/2=3.8*10^7 p=38000000 watts

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