Questions from Modern Physics

Q: A +2.00-nC point charge is at the

A +2.00-nC point charge is at the origin, and a second -5.00-nC point charge is on the x-axis at x = 0.800 m. (a). Find the electric field (magnitude and direction) at each of the following points on...

Q: Repeat Exercise 21.39, but now let the charge at

Repeat Exercise 21.39, but now let the charge at the origin be -4.00 nC. Exercise 21.39: A +2.00-nC point charge is at the origin, and a second -5.00-nC point charge is on the x-axis at x = 0.800 m....

Q: Three negative point charges lie along a line as shown in Fig

Three negative point charges lie along a line as shown in Fig. E21.41. Find the magnitude and direction of the electric field this combination of charges produces at point P, which lies 6.00 cm from t...

Q: Two point charges are separated by 25.0 cm (Fig

Two point charges are separated by 25.0 cm (Fig. E21.43). Find the net electric field these charges produce at Fig. E21.43: (a). point A and (b). point B. (c). What would be the magnitude and dir...

Q: If two electrons are each 1.50 × 10-10

If two electrons are each 1.50 × 10-10 m from a proton (Fig. E21.45), find the magnitude and direction of the net electric force they will exert on the proton. Fig. E21.45:

Q: In a rectangular coordinate system, a positive point charge q =

In a rectangular coordinate system, a positive point charge q = 6.00 × 10-9 C is placed at the point x = +0.150 m, y = 0, and an identical point charge is placed at x = -0.150 m, y = 0. Find the x- an...

Q: Two metal spheres are hanging from nylon threads. When you bring

Two metal spheres are hanging from nylon threads. When you bring the spheres close to each other, they tend to attract. Based on this information alone, discuss all the possible ways that the spheres...

Q: In a certain region of space, the electric field

In a certain region of space, the electric field

Q: A point charge q1 = -4.00 nC is at

A point charge q1 = -4.00 nC is at the point x = 0.600 m, y = 0.800 m, and a second point charge q2 = +6.00 nC is at the point x = 0.600 m, y = 0. Calculate the magnitude and direction of the net elec...

Q: A charge of -6.50 nC is spread uniformly over

A charge of -6.50 nC is spread uniformly over the surface of one face of a nonconducting disk of radius 1.25 cm. (a). Find the magnitude and direction of the electric field this disk produces at a poi...