Recent content by anyone1979

Thank you for your help.

After doing solving the problem, I came up with 882V. I went over it every possible way I can think of.

Another reason why I found the acceleration was because of what you stated above.

I needed it to calculate the electric force and electric field. But when I finished solving the problem, I did not need the electric force or the electric field. I got the answer by finding the displacement and then finding the voltage applied to the plates based on the deflection angle.

Ok this is what I have so far. (15000)(1.602 x 10^-19) = 2.4 x 10^-15 J KE = (1/2)(m)(v^2) = 2.4 x 10^-15 J v = sqrt(2 x (2.4 x 10^-15))/(9.11 x 10^-31) = 7.3 x 10^7 m/s x = 3 x 10^-2 m d = 0.0025 m, y = .0025 m x = vt t = (3 x 10^-2)/(7.3 x 10^7) = 4.1 x 10^-10 sec a =...

[SOLVED] Deflection of Plates Answer choices: A) 63V B) 112V C) 520V D) 642V E) 882V y = .5cm = 5 x 10^-3 m x = 3cm = 3 x 10 ^-2 m angle = 10 degrees acceleration(a) = ((1.602 x 10^-19) (15000))/(9.11 x 10^-31) = 2.6 x 10^15 m/s^2 Force(F) = 2.6 x 10 ^15(9.11 x 10^-31) =...

Thanks for all your help...

Sorry guys, I had a brain fart. I just realized my mistake...You guys are both right. Thanks for all your help

Thanks...I realized my error now. I made a mistake on the calculation

Thanks, I just realized it... I calculated all wrong

Thanks for clearing that up. I just got to add the 196 kg. Weight of balloon = density of hydrogen * V * gravity + 196 then the buoyant force minus the weight of the balloon will give me the max load.

Where will the mass of the balloon plastic etc.. tie in? if ... V = (4 pi / 3)(radius^3) = 7.24 * 10^3 m^3 Then... mass of displaced air = (7.24 * 10^3 m^3) * (1.25 kg/m^3) = 9.1 * 10^3 kg weight of displaced air = (9.1 * 10 ^3 kg) * (9.8 m/s^2) = 89180 N I am a little confused...

A hollow sphere of inner radius 8.0 cm and outer radius 9.0 cm floats half submerged in a liquid of specific gravity 0.80. Calculate the density of the material of which the sphere is made. Density of water = 1 * 10^3 kg/m^3 inner radius = 8.0 cm = 8 * 10 ^-2 m outer radius = 9.0 cm = 9 *...

Thanks for the reply. Archimedes' principle states: When a body is completely or partially immeresed in a fluid, the fluid exerts an upward force on the body equal to the weight of the fluid displaced by the body. When a balloon floats in equilibrium in air, it's weight (including the gas...

Help with a problem: A spherical, hydrogen-filled balloon has a radius of 12 m. The mass of the balloon plastic and support cables is 196 kg. What is the mass of the maximum load the balloon can carry? (Density of hydrogen = 0.09 kg/m^3; density of air = 1.25 kg/m^3) I do not know...