Recent content by marc017

Ahh, yes. The notes I wrote down were throwing me off, they weren't in lbs like i was assuming.

Homework Statement A gas station stores its gasoline in a tank underground. The tank is a cylinder lying horizontally on its side. The radius is 3 ft, the length is 14 ft, and the top of the tank is 10 feet under the ground. The density of gasoline is 42 lb/ft3 a) Consider a slice of gasoline...

Homework Statement A lobster tank in a restaurant is 8 ft long by 7 ft wide by 2 ft deep. Find the water force on the bottom and on each of the four sides. The density of water is 62.4 lb/ft3.Homework Equations Pressure = density * gravity * height Force = Pressure * Area The Attempt at a...

Thank you.. I was checking the integrals on wolfram but it seems to work much better if I take my answer and try to get the integral. And I can't believe I didn't think of the 1-cos(w) substitution :redface: I just found this forum and you guys have been a lot of help! Maybe one day i will be...

This isn't homework, It is just book problems that I am practicing, I am checking some answers with wolfram and others with the book answers. Homework Statement \begin{align} \int \frac{sin(w)\,dw}{\sqrt{1-cos(w)}}\\ \end{align} Homework Equations I used u substitution... Not sure if I...

Thank you skins.

My first post let's see if i did this typing right, if not please forgive me... Homework Statement \int \frac{(1+ln x)^2}{x}\,dx Homework Equations Trying to attack it by using substitution.. The Attempt at a Solution Using... u = 1 + ln(x) , du = 1/x \begin{align} \int \frac{(1+ln...