Saturday
October 25, 2014

Posts by jahil


Total # Posts: 16

Physics
A 2.50- object is moving along the axis at 1.60 . As it passes the origin, two forces and are applied, both in the direction (plus or minus); .The forces are applied for 3.00 , after which the object is at the point , . What is F2?
February 13, 2011

physics
Vector V(with an arrow at the top) represents a displacement of 120. at 29.0 counterclockwise from the x axis. Write unit in Vector notation... Help!
February 7, 2011

Calculus 1 Related Rates
Thank you so much Reiny you rock! I was putting that .406 in for V but i did have 620 with the 33.0^-1/2. Thanks you Rock!!!!!
November 21, 2010

Calculus 1 Related Rates
Water is discharged from a pipeline at a velocity v(in ft/sec) given by v=1240p^(1/2), where p is the pressure (in psi). I f the water pressure is changing at a rate of 0.406 psi/sec, find the acceleration(dv/dt) of the water when p=33.0 psi. I know the answer is suppose to be...
November 21, 2010

Calculus 1 Implicit differentiation
Help please help me understand what i am doing wrong in this problem! x^3+3x^2y+y^3=8 find dy/dx using implict differentiation. The answer is x^2+2xy -------- but i keep getting x^2y x^2+y^2 ----- x^2+y^2
November 21, 2010

Chemistry/Math
So if i were asked for grams of Hydrogen per day? it would be 1 mole H20 X 2 grams of H/1 mole H20
August 21, 2010

Chemistry/Math
I think so could you critique this? 1. I came up with 1000grams of H20 2. 1 mole H20 X 6.022X10^23/1 mole H20=6.0222X10^23 Molecules Oxygen 3. 1 mole H20 x 1 atom of oxygen/1 mole H20= 1 atom of Oxygen Is this correct I really am trying to learn and understand this so that I ...
August 21, 2010

Chemistry/Math
If a doctor tells you to drink 1 liter of water per day, answer the following questions(assuming the density of water to be 1g/mL): 1. The number of grams of water per day? 2.The number of molecules of oxygen per day? 3. The number of atoms of oxygen per day? Please show how ...
August 21, 2010

College Chemistry
thanks so in any other question i can still use to as my base number raised to whatever half life is provided?
May 2, 2010

College Chemistry
For a certain first-order reaction the rate constan is 2.9 s-1. what is the fraction of the reactant remaining after 4 half lives?
May 2, 2010

College Chemistry
i still dont get it. (H+)=x/0.050M
May 2, 2010

College Chemistry
what is the approximate pH of a solution labeled 0.050 M HClO? I realized my mistake on my last post but this isnt a strong acid nor a strong base so how do i solve this?
May 2, 2010

College Chemistry
4.2 thank you so much do u have time for another one?
May 2, 2010

College Chemistry
What is the approximate pH of a solution labeled 6 x 10^-5 M HBr?
May 2, 2010

college Chemistry
0.0124/121.64= 1.02 x 10^-4g/mol 1.02 x 10^-4/ .5= 2.04 x 10^-4 2.04 x 10^-4*2=4.08x 10^-4 -log(4.08 x 10^-4)= 3.39 14-3.39=10.61 thank you so much!!!!!!
May 2, 2010

college Chemistry
What is thhe pH of 500mL of solution containing 0.0124 grams of Ca(OH)2?
May 2, 2010

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