Recent content by Vigo

1.) An iceberg's volume is 2*10^6 m^3. If the temperature of the iceberg is is 250 K and the density is .9998 g/cm^3, how much heat energy would be required to competely melt it? 2.) An object weighs 500 grams and has a specific heat of 2 Joules/g C. The object absorbs 40% of the output of...

A 20 liter stainless steel container was charged with 2 atm of hydrogen gas and 3 atm of oxygen gas. A spark ignited the mixture, producing water. What is the pressere in the tank at 25 degrees C? If the reaction in the above problem occurred at 125 degrees C, what would the pressure in the...

For a), I've got the points in terms of p. For b), I'm just not quite sure what they are asking for when they say "distinct roots." For c), I know that to find the average value, you take 1/(-1-2) and multiply that by the definite integral of f'(x) from -1 to 2. Since it has to equal 1...

You are right about the derivative being wrong. The correct derivative is (x+2)/(x^2+x+1)^3/2. It's weird because the note about this wrong derivative was given on the worksheet.

I know we have done domain before but it is a little fuzzy. I know domain is where the x values exist and the range is where the y values exist. These may not be the right defintions but this is how I was taught it. For b), I know that the horizontal asymptotes have the eqaution of y=+ or - 2...

Please Help! Let f be the function given by f(x)=2x/sqrt(x^2+x+1) a)Find the domain for f. Justify your answer. b)Write an equation for each horizontal asymptote of the graph f. c)Find the range of f. Use f'(x) to justify your answer. Note: f'(x)=(x+2)/(x^2 +x+1)^.5 Please help...

Let f be the function given by f(x)= (x^3)-(6x^2)+p, where p is an arbitrary constant. a)Write an expression for f'(x) and use it to find the relative maximum and minimum values of f in terms of p. Show the analysis that leads to your conclusion. b)For what values of the constant p does f...

Alright, thanks a lot for all of your help. I believe this graph looks like a slanted ellipse.

Since y is increasing when x<3 and decreasing when x>3, does that mean there is a local maximum?

Consider the curve given by X^2+4y^2=7+3xy a) show that dy/dx=3y-2x/8y-3x b) show that there is a point P with x-cooridnate 3 at which the line tangent to the curve at P is horizontal. Find the y-cooridnate of P. c)find the value of d^2y/dx^2 at the point P found in part (b). Does the curve...

Thank you very much for correcting me. I guess my error was solving for y. I don't know how I made that mistake but thanks a lot.

______y__________y______ l------------l--------------l l------------l--------------l l------------l--------------l l--x---------l--x-----------l x l------------l--------------l l------------l--------------l l___________l____________l A person has 400 ft. of fencing to maximize the...

Yeah the subject can be anything science related. I kind of wanted to do something with chemistry because it is my favorite science.

Would that chemiluminescence thing be a good idea for a science fair project ? It sounds cool but it also doesn't sound detailed enough for a science fair project.

For my Anatomy class, we are requiered to do a science fair project. I am having trouble coming up with an idea but I think I want to do something involving acid-base reactions. I would appreciate any ideas on this topic. Thanks.