Recent content by axgalloway

It looks like they collide after the coconut going up starts going down, so: My attempt at the solution Monkey throwing up coconut 2: v2 = u2 + 2as 0m/s = (15m/s)2 + 2(-9.81m/s2)s 0m/s = 225m/s - 19.6m/s2s -225m/s = -19.6m/s2s s = 11.5m a = (v2 - v1) / t -9.81m/s2 = (0m/s - 15m/s)...

Homework Statement Two lound speakers are each located 16m from a wall and are 0.8m apart. They play a 3000 Hz sound, both speakers are in phase. Bill is located at the wall at the m=0 maximum of sound interference. If he walks along the wall, how far does he have to walk to hear m=1...

Homework Statement I am given V(x,y,z) = 3x^2 + 2y + 5 and I am given s = (5,3,1), so what is the electric field? Homework Equations V= Es The Attempt at a Solution I really have no idea. What I tried: Derivative of V(x,y,z) = 6x+2 so E = 32 N/C? Really I just don't...

Actually, that solution is a calculator error. Here was my 3rd attempt at a solution (pressing the calculator correctly this time) Esphere1 + Esphere2 = Etotal (k*89*10^-9) / (4.25*10^-2)^2 + (k*95*10^-9) / (4.25*10^-2)^2 Correct answer = 9.16 * 10^5 N/C Thanks for the help.

Here was my 2nd attempt at a solution Esphere1 + Esphere2 = Etotal (k*89*10^-9) / (4.25*10^-2)^2 + (k*95*10^-9) / (4.25*10^-2)^2 = Wrong answer: 4.58*10^6 N/C

Homework Statement Two 2.0-cm-diameter insulating spheres have a 6.50 cm space between them. One sphere is charged to + 89.0 nC, the other to - 95.0 nC. What is the electric field strength at the midpoint between the two spheres? Homework Equations Esphere = KQ/r^2 k = 8.99 * 10^9...