CALCULUS 265 Honors Student Name_____________________ TEST 2 September 29, 2000 Instructor: Hentzel 1. Find the volume above z = x^2+y^2 which is below the plane z = 16; 1. Volume = ____________________________ 2. Find the surface area of the surface z = x^2 + y^2 below the plane z = 16. 2. Surface Area = ______________________________ 3. Convert the following into Cylindrical coordinates. Do not integrate. 3 +Sqrt[9-x^2] Sqrt[25-x^2-y^2] INT INT INT Sqrt[x^2+y^2] dz dy dx. 0 -Sqrt[9-x^2] 0 theta = ________ r = _________ z = ________ INT INT INT dz dr dtheta theta = _________ r = _________ z = ________ 4. Convert the following into Spherical coordinates. Do not integrate. 3 Sqrt[9-x^2] Sqrt[9-x^2-y^2] INT INT INT x^2+y^2+z^2 dz dy dx 0 0 0 theta = _____ phi = __________ p = ___________ INT INT INT dp dphi dtheta theta = _____ phi = __________ p = ___________ 5. Set up the Integral for the moment about the xy plane of the portion of the cone z = 4 Sqrt[x^2 + y^2] below z = h in Spherical coordinates. Do not integrate. theta = _____ phi = __________ p = ___________ INT INT INT dp dphi dtheta theta = _____ phi = __________ p = ___________ 6. Set up the Integral for Iz for the portion of the sphere x^2+y^2+z^2 = a^2 above z = b in cylindrical coordinates. Do not integrate. theta = ________ r = _________ z = ________ INT INT INT dz dr dtheta theta = _________ r = _________ z = ________ 7. Set up the Integral for the surface area of the portion of the sphere x^2 + y^2 + z^2 = 5^2 between the planes z = 3 and z=4 using polar coordinates. Do not integrate. theta = ________ r = _________ INT INT dz dr dtheta theta = _________ r = _________ 8. Set up the integral for the volume of the "sno-cone" which is the intersection of the Sphere x^2 + y^2 + z^2 = a^2 and the cone z^2 = 9(x^2 + y^2) in spherical coordinates. Do not integrate. theta = _____ phi = __________ p = ___________ INT INT INT dp dphi dtheta theta = _____ phi = __________ p = ___________ 9. Set up the integral for the volume inside the sphere x^2+y^2+z^2 = a^2 and above z = Sqrt[x^2 + y^2] in Cylindrical coordinates. Do not integrate. theta = ________ r = _________ z = ________ INT INT INT dz dr dtheta theta = _________ r = _________ z = ________ 10. Give a geometrical interpretation of the triple integral. theta= 2 Pi phi= Pi/2 p=6 Cos[phi] INT INT INT p^2 Sin[f] d(rho) d(phi) d(theta) theta=0 phi=0 p=0