Recent content by shinobi12

Homework Statement Show the electric field inside an empty cavity in a conductor is zero, even if there is a charge outside the conductor. If a charge is placed inside the cavity, will there be an electric field outside the conductor. Explain Clearly. Assume that both the conductor and cavity...

Homework Statement Find the area of the ellipse (x^2)/4 + (y^2)/9 = 1 Homework Equations (1/2) * Integral of xdy - ydx = area of a Region The Attempt at a Solution The problem is weird to me because its complicated to attempt it in rectangular or polar coordinates)

Homework Statement Write the equation of the plane that contains the following two parrallel lines R(t) = <1,0,3> + t<1,,4,-2> and E(t) = <2,3,0> + t<1,4,-2> Homework Equations The Attempt at a Solution I tried parameterizing of the equations that didnt seem to work. Please...

I assumed we had a line from (0,0) to (1,1) so we had a vector of <1,1> so... x=t y=t

Homework Statement Calculate the anti-derivative of ydx where c in the ellipse 4x^2 + 25y^2 = 100 Homework Equations Definition of a line integral The Attempt at a Solution I tried parameterizing the equations but I sure if am making the right choice

Homework Statement A block having mass m and charge +Q is connected to an insulating spring having force constant k. The block lies on a frictionless, insulating horizontal track, and the system is immersed in a uniform electric field of magnitude E The block is released from rest at a...

Homework Statement A slab of insulating material has a nonuniform volume charge density given by rho = Cx2, where C is a positive constant and x is measured from the slab’s center. The slab is infi…nite in the y and z directions. (a) Find the electric fi…eld for |x| > d=2, that is, in the...

Homework Statement Two 1.50 V batteries-with their positive terminals in the same direction-are inserted in series into the barrel of a flashlight. One battery has an internal resistance of 0.255 ohms, the other has a resistance of 0.153 ohms. When the switch is closed, a current of 600 mA...

Homework Statement trrttA battery has an emf of 15.0 V. The terminal voltage of the battery is 11.6 V when it is delivering 20.0 W of power to an external load resistor R. (a) What is the value R? (b) What is the internal resistance of the battery? Homework Equations The...

Homework Statement (a) Find the electric potential at a distance of 1.00 cm from a proton. (b) what is the potential difference between two points that are 1.00 cm and 2.00 cm from a proton? Homework Equations I know delta V has to be set equal to something but I am not sure what...

thanks i really appreciate your help

Homework Statement How much work is done by a generator or some other source of potential difference in moving 1 mole of electrons from an initial point of electric potential 9.00 V to where the potential is -5.00 V Homework Equations Im sure what to do The Attempt at a...

i found the length of the of the hypotenuse and found the area of the side and I am having trouble figuring out the angle of the area vector and the electric field vector

Homework Statement A pyramid with horizontal square base, 6.00 m on each side, and a hieght of 4.00 m is placed in a vertical electric field of 52.0 N/C. Calculate the total electric flux through the pyramid's four slanted surfaces. Homework Equations Phi = E*A*cos(theta) The...

yeah that was a typo thanks