here is a buffer problem in my HW that I'm not sure how to do.
Plz help me. Plz show me how. Thanks a lot.
Formula: pH = pKa + log([B-]/[HB])
***A buffer is made up of 0.500 L each of .300 M KH2PO4 and .400 M K2HPO4. Calculate
a) The pH of the buffer after the addition of 0.0500 mole of...
Can someone please help me w/ these problems below:
Find the volume generated by revolving the area abounded by x=y^2 and x=4 about
a)the line y=2
b)the line x= -1
***I tried to write out the integral not sure if it's correct:
a) V=pi* int. of (sqrt(x)^2-(2-sqrt(x))^2) dx
**integral form...
Someone please show me how to do these problem below...or at least show me the 1st few steps so I can get started. Thanks a lot. Plz help me out...
1)Find the force against the lower half of the rectangular floodgate 10ft wide and 8ft deep.
2)A conical tank 10ft deep and 8 ft across the top...
Someone please help me how to do these problems below. Thanks a lot for your help.
1) On the surface of the moon the acceleration due to gravity is approximately 1/6 the sun at the surface of the earth, and on the surface of the sun it is approximately 29 times as great as at the surface of the...
Someone please help me how to do these problems below. Thanks a lot for your help.
1) On the surface of the moon the acceleration due to gravity is approximately 1/6 the sun at the surface of the earth, and on the surface of the sun it is approximately 29 times as great as at the surface of...
Someone please help me to do these problems below...show me what foruma/ integral to use... Thank you very much.
1) A cable 600 ft long that weighs 4 lb/ft is hanging from a windlass. How much work is done in winding it up?
2) A 5-lbs monkey is attached to the end of a 30-ft hanging chain...
Someone please help me with these problems below...I'm so confused...
Plz show me clearly how to begin...too...I'm not good with mixing calc and physics... Thanks very very much.
1) With what velocity must an arrow be shot upward in order to fall back to its starting point 10 seconds later...
Can someone please show me the concept of trig substituion and easy way to use it...I don't quite understand this...
I'm ot sure how to dothis problem below..
1) indefinite integral dx/(x^3sqrt(x^2-a^2))
2) indefinite integral (1-4x^2)^(3/2)dx
How to use integration by part for...
Calc help please!
Can someone please help me how to do this problem using calculus? Thanks a lot.
A ball is dropped out of a window 19.6m above the ground. At the same time another ball is thrown straight down from a window 79.6m above the ground. If both balls reach the ground at the same...
) IF the rate of increase o f population of a country is 3 percent every year, by what factor does it increase every 10 years? What percentage increase will double the population every ten years?
***N= Pe^(k*t) <---this is the equation, not sure how to use it...
Someone please help me to do this problem below. Thanks
1)a) Verify that y= e^(-x) and y= e^(2x)are both solutions of the differential equation y"-y'-2y=0
b) Factor the polynomial t^2-t-2. What connection do you see between the roots of this polynomial and the solutions of y"-y'-2y=0...
Calc help please!
Plz explain to me what the problem below is talking about? I don't really understand what it's saying...I can't picture the graph of the function...
"The base of a solid is a quadrant of a circle of radius a. Each cross section perpendicular to one edge of the base is a...