A +200 micro Coulomb is placed at the origin and a -300 microCoulomb is placed 1m to the right of it. What is the magnitude and direction of the electric field midway between the two charges and 30 cm to the right of the negative charge

Singly-ionized helium contains two protons and one electron (there are also neutrons, but they have net zero charge and are not pertinent to this problem). Suppose the electron is located a distance of 2.65 × 10^-11 m from the nucleus. Place the nucleus at the origin of your coordinate system and the electron on the positive-x axis. What is the position on the x-axis at which the electric field is zero?

A 1.94 x 10-9 C charge has coordinates x = 0, y = −2.00; a 2.85 x 10-9 C charge has coordinates x = 3.00, y = 0; and a -4.60 x 10-9 C charge has coordinates x = 3.00, y = 4.00, where all distances are in cm. Determine magnitude and direction for the electric field at the origin and the instantaneous acceleration of a proton placed at the origin. (a) Determine the magnitude and direction for the electric field at the origin (measure the angle counterclockwise from the positive x-axis). magnitude   direction   (b) Determine the magnitude and direction for the instantaneous acceleration of a proton placed at the origin (measure the angle counterclockwise from the positive x-axis). magnitude   direction

There is an equilateral triangle with sides 2 meters in length.  At one of the points is a 1 microcoulomb charge, at the second point there is a 2 microcoulomb charge, and at the third point there is a 3 microcoulomb charge.  What is the magnitude of the force on the 2 microcoulomb charge?

Charge q, = 2.50 nC is at x, = 0 and charge q, = 6.00 nC is at x, = 4.00 m. At what point between the two charges is the electric field equal to zero? (Enter the x coordinate in m.) HINT Write an expression for the net electric field as a function of position, x, in the region between the two charges. (Don't forget that the electric field is a vector, so direction is important!) Set this expression equal to zero and solve for the variable x using the quadratic equation. Click the hint button again to remove this hint. m

A 1.86  10-9 C charge has coordinates x = 0, y = −2.00; a 3.21  10-9 C charge has coordinates x = 3.00, y = 0; and a -5.20  10-9 C charge has coordinates x = 3.00, y = 4.00, where all distances are in cm. Determine magnitude and direction for the electric field at the origin and the instantaneous acceleration of a proton placed at the origin. (a) Determine the magnitude and direction for the electric field at the origin (measure the angle counterclockwise from the positive x-axis). magnitude   direction  ° (b) Determine the magnitude and direction for the instantaneous acceleration of a proton placed at the origin (measure the angle counterclockwise from the positive x-axis). magnitude   direction  °

What is the magnitude of an electric field at a point that is 4.24 meters away from a 1.95C charge?

A proton is suspended vertically (on earth) by an electric field. How strong is the field?

A uniform electric field exists in a region between two oppositely charged plates. An electron is released from rest at the surface of the negatively charged plate and strikes the surface of the opposite plate, 6.0 cm away, in a time 1.6 ✕ 10−8 s. (a) What is the speed of the electron as it strikes the second plate?       __________m/s(b) What is the magnitude of the electric field?        ___________N/C

An electron is placed at rest in an electric field of 510 N/C. Which of the followings is the speed of the electron 47.0 ns after being released?