Recent content by DanialD

Homework Statement Given that the surface ares of a sphere is 36(pi)x^2+24(pi)x+12(pi) , state the volume of a cylinder that would exactly contain the sphere. (note that the height of the cylinder is twice the radius of the sphere).Homework Equations Sphere SA= 4(pi)r^2 VolCylinder= (pi)r^2h...

well yeah, i don't know what to do with q.

Homework Statement If we divide f(x)= x^3+qx^2-x-2 by x+1, we get the same remainder as if we divide it by x-2. Determine the value of q Homework Equations f(x)= x^3+qx^2-x-2 The Attempt at a Solution I tried to plug in f(-1) into the equation, and then f(2) into the equation...

Yeah, no its really basic i guess.. here's what i tried, but I am not sure if its right! i got Epi, Eki, and Epf. i used Epi + Eki = Epf + Ekf to isolate for Ekf... after that, i used Ekf in the equation of v=(root)[2Ek/m) and found a velocity. My only question is... does that method...

Homework Statement I have a roller coaster with 6 segments. i must find the speed, potential energy, and kinetic energy at the beginning and end of each segment that a marble rolls through. Lets say that the marble is 8.47kg in mass, and i have one segment of the coaster having a distance...

again, thanks so much!

Thank you so much, you helped me a lot. Just a question, is there another way to formulate this question using log?

Homework Statement An archaeologist finds an oak wine cask in one of her digs. Testing the activity from the radioactive carbon-14 in the cask reveals that it is only one-quarter that of the activity coming from the modern sample of the same type of oak. How old is the sample? Homework...