A Van de Graaff generator is charged so that a proton at its surface accelerates radially outward at 1.52 x 1012 m/s2. Find (a) the magnitude of the electric force on the proton at that instant and (b) the magnitude and direction of the electric field at the surface of the generator.

Two very large charged parallel metal plates are 11.0 cm apart and produce a uniform electric field of 2.80×106 N/C between them. A proton is fired perpendicular to these plates with an initial speed 5.20 km/s, starting at the middle of the negative plate and going toward the positive plate. Please refer to the photo

An electron has an initial velocity of 10.0 × 106 m/s in a uniform 3.00 x 105 N/C strength electric field. The field accelerates the electron in the direction opposite to its initial velocity. (a) What is the direction of the electric field? same direction as the electron's initial velocity V (b) How far does the electron travel before coming to rest? m (c) How long does it take the electron to come to rest? S (d) What is the electron's speed when it returns to its starting point? m/s

Charge q₁ = 2.50 nC is at x₁ = 0 and charge 92 HINT Xm = 7.50 nC is at x₂ = 4.50 m. At what point between the two charges is the electric field equal to zero? (Enter the x coordinate in m.)

Charge q1 = 3.00 nC is at x1 = 0 and charge q2 = 4.50 nC is at x2 = 2.50 m. At what point between the two charges is the electric field equal to zero? (Enter the x coordinate in m.)

At one point above Earth's surface a uniform electric field points straight up with a magnitude of 53 N/C. A small charged 10.0 mg bead is held stationary 1.0 m above the ground. What is the charge on the bead if it has an initial upward acceleration of 29.4 m/s? when it is released from rest?

The positive and negative plates of a parallel-plate capacitor have an area of 1.60 cm by 1.60 cm. Their surface charge densities are +1.00×10-6 C/m2and -1.00×10-6 C/m2, respectively. A proton moving parallel to the plates enters the middle of the space between them at a speed of 2.65×106 m/s. Assuming the field outside the capacitor is 0 and the field inside is uniform, how far to the side will the proton's path have deviated when it gets to the far end of the capacitor?

If you have two fixed particles with electric charges q1= 5 μC and q2= 17μC separated by a distance of 50 cm, determine the place where you have to place a third particle with electric charge q3=2µC in such a way that it remains at rest when released. q1 q2

A particle of mass m = 1.0 g and charge 2.0 µC is placed in a region of space that has a constant electric field of magnitude 2000 N/C. What is the magnitude of the force exerted on the particle due to the electric field? O 4 x 103 N O 2N O 4N O 1000 N 2000 N O 4000 N 2 x 10° N O 1x 10° N

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