Recent content by pvpkillerx

Wait, how exactly do you get that though? I see how you get x + z = -1, but how do you get y + z = -1/2 -z? I also understand z = z. Can you explain the second line? thanks.

ohh, i got the answer, u were right, the calculator was suppose to be in radians mode -_- oops. Thanks.

I tried with and without 9/8, both don't give me the right answer.

Ye, its from 1 to 0, and n = 4.

Use the midpoint rule to approximate the following integral: ∫sin(x) dx This is what I did: Δx = (1-0)/4 = 1/4 1/4(f(1/8) + f(3/8) + f(5/8) + f(7/8) + f(9/8)) But the answer i get is wrong. Is that the correct midpoint rule formula, and are the values I plugged in right? Any help is...

Find an equation for the plane that contains the line x = 1+t, y = 3t, z = 2t and is parallel to the line of intersection of the planes -x+2y+z = 0 and x + z + 1 = 0. On the attachment, the answer is there. My question is, (on the first page) right after he wrote, x,y, leading, z free, he...

Thank you!

How would I use a shear force diagram and a bending moment diagram to find the maximum flexural compressive stress and the maximum flexural tensile stress? I am assuming the peaks at the bending moment diagram is the maximum tensile and compressive stresses? Am I correct? Also, is it...

I have figured it out, and i get approximately 6500 to 6800km in radius depending upon which floor i am on. The real value of the radius of Earth is around 6378km, so i am very happy with the results. Thank you very much for all the help, I really appreciate it.

Of course i followed what it said in the document, seeing as how that is my experiment as i mentioned before. I am just confused with the variables.

I think i might know what my mistake is, cause I converted all of my mGal readings to m/s^2. But I am still wondering what to plug in for the equation. g =9.8, Δg = the value that i get in mGal, what's ΔR and R? What values do I use for those?

Okay, let's say i only want to find the radius of earth, how do I do that? What values do I plug in? The slope of Δg vs ΔR is -0.0305 * 10^.4 m/s^2. Please help, thank you. Every time i plug values in, i tried a lot of them, i don't even get a close value to the real value of Earth radius. Any...

ye, that's my experiment, but i don't know what values to plug in.

I used a Sodin Gravimeter to measure the relative gravity of a building with 14 floors. I am wondering on how I use the relative gravity to find absolute gravity? Information: Height difference of each floor is 3.95m Each floor weighs 106kg For example, on the basement floor, the reading...

nvm, i figured it out, its 5/2Sin(2t+pi)