Recent content by JJones_86

so should it be 0.92C/4(8.85x10^-12) = 2.59887e10?

Hey thanks man, my professor failed to tell us that and its not in this useless pc textbook. I appreciate it!

I'm just lost on what Eo is?

Homework Statement An object with a charge of 0.920 C is placed at the center of a regular tetrahedron with 4 equivalent surfaces. What is the electric flux through one surface of the tetrahedron? Homework Equations For an n-sided polygon Electric Flux = Charge / (n)(Eo) The...

Homework Statement A common flashlight bulb is rated at 0.3 A and 3.3 V (the values of current and voltage under operating conditions). If the resistance of the bulb's tungsten filament at room temperature (20.0 degrees Celsius) is 1.10 Ohms , estimate the temperature of the tungsten...

Oops, calculator error, thanks!

Homework Statement The current in the electron beam of a computer monitor is 410 µA. How many electrons per second hit the screen? Homework Equations The Attempt at a Solution A beam current of 410µA means that 410µC of charge strike the screen per second. This is equivalent to...

I'm not exactly sure what you mean by equal and opposite, would it make it 0 N then?

Oh ok, so it should be kq/2d^2 then?

F = k*q1*q2/r^2 F = 8.99E9(4.2E-6)(24.1E-6)/2.71679^2 F = 0.123286 N?

Homework Statement Two charges, -20.6 microC and +4.2 microC, are fixed in place and separated by 3.3 m. (a) At what spot along a line through the charges is the net electric field zero? Locate this spot relative to the position of the positive charge. (b) What would be the magnitude...

Homework Statement In the figure below , what is the electric field at point P? Homework Equations F = k*(q1*q2)/r^2 The Attempt at a Solution F = k*(2q^2) / (2d + d)^2 That is my attempt, but it's not a possible answer.. Any help is appreciated.

Nevermind, I've figured out what I did wrong, I was treating the equation like this (1-277.1K)/292K

Homework Statement Calculate the maximum possible efficiency of a heat engine that uses surface lake water at 19°C as a source of heat and rejects waste heat to the water 0.100 km below the surface where the temperature is 4.1°C. Homework Equations eta = 1 - Tc / Th The Attempt at...

Homework Statement The displacement (in meters) of a wave is y = 0.37 sin((pi)t - 3.88(pi)x), where t is in seconds and X is in meters. What is the displacement y when t = 34.4 s and x = 6.7 m? Homework Equations y = 0.37 sin(t - 3.88x) The Attempt at a Solution y = 0.37...