An electron with a speed 5.00x10^8 cm/s enters an electric field of magnitude 1.00x10^3 N/C, traveling along a field line in the direction that retards its motion. (a) how far will the electron travel in the field before stopping momentarily, and (b) how much time will have elapsed? (c) If the region containing the electric field is .08m long, what fraction of the electron's initial kinetic energy will be lost in that region?

An electron with a speed 5.00x10^8 cm/s enters an electric field of magnitude 1.00x10^3 N/C, traveling along a field line in the direction that retards its motion. (a) how far will the electron travel in the field before stopping momentarily, and (b) how much time will have elapsed? (c) If the region containing the electric fiel ...continues

electric field

An alpha particle (the nucleus of a helium atom) has a mass of 6.64x10-27kg and a charge of +2e. What are the (a)magnitude and (b)direction of the electric field that will balance the gravitational force on the particle? I need to know the step by step setup and answer for this problem given the above information. thank you

Why do resistors in parallel have the same potential difference?

The book says the reason is that each Coulomb of charge passing through the combination delivers the same amount of energy whatever route the charge takes. Please explain. Also, how come different resistances don't have an effect on this voltage.

Uniform electric field

A uniform electric field of magnitude 640 N/C exists between 2 parallel plates that are 4.0 cm apart. A proton is released from the positive plate at the same instant an electron is released from the negative plate. a) Determine the distance from the positive plate at which the two pass each other (ignore the electric attract ...continues

Electrical Field Problem

See Attached .jpg for further information on this as well, please: Three charges of equal magnitude q are fixed in position at the vertices of an equilateral triangle (drawing). A fourth charge Q is free to move along the positive x axis under the influence of the forces exerted by the three fixed charges. Find a val ...continues

Electrical Field Problem

Hi, I could use help setting up and figuring this one out. A .jpg is attached as well. Thanks. Four identical point charges (q = +10.0 μC) are located on the corners of a rectangle as shown in .jpg. The dimensions of the rectangle are L = 60.0 cm and W = 15.0 cm. Calculate the magnitude and direction of the resultant ...continues

Charged pendulum in electric field

A 1.00 g cork ball with charge 2.00 uC is suspended vertically on a 5.00 m long, light string in the presence of a uniform, downward-directed electric field of magnitude E = 1.00 x 10^5 N/C. If the ball is displaced slightly from the vertical, it oscillates like a simple pendulum. a) Determine the period of this oscillation. ...continues

Concentric conducting spherical shells; find electric fields and surface charge densities

Using the attachment, please tell me whether I got the (A) - (E) parts correct. My answers are circled. And please show me how to do the surface charge density in parts (F) - (I). See attached file for full problem description.

a point charge in an electric field

An electron e is released from rest on the central axis of a uniformly charged disk of radius R. The surface charge density on the disk is +4.0(10)^-6 C/m^2. I need the magnitude of the electrons initial acceleration if it is released at distance: (a) R (b)R/100 (c)R/1000 from the center of the disk? And why does the ...continues

a point charge

a charged cloud system produces an electric field in the air near the earths surface. A particle of charge -2.0x10^-9C is acted on by a downward electrostatic force of 3.0x10^-6N when placed in this field. (a) what is the magnitude of the electric field? (b) what are the magnitude and direction of the electrostatic force F(el ...continues