What would be the magnitude of the electrostatic force between two 1.00 C point charges separated by a distance of (a) 1.00 m and (b) 1.00 km if such point charges existed (they do not) and this configuration could be set up?

Two tiny conducting spheres are identical and carry charges of -21.3 µC and +65.3 µC. They are separated by a distance of 3.57 cm. (a) What is the magnitude of the force that each sphere experiences? (b) The spheres are brought into contact and then separated to a distance of 3.57 cm. Determine the magnitude of the force that each sphere now experiences. (a) Number (b) Number i Units Units

Red blood cells can often be charged. Consider two red blood cells with the following charges: -22.2 pC and +53.8 pC. The red blood cells are 4.29 cm apart. (1 pC = 1 x 10-12 C.) (a) What is the magnitude of the force on each red blood cell? Are the red blood cells attracted or repulsed by each other? O attracted O repulsed (b) The red blood cells come into contact with each other and then are separated by 4.29 cm. What magnitude of force does each of the red blood cells now experience? N Are the red blood cells attracted or repulsed by each other? O attracted O repulsed

Two metal spheres, each of radius 2.6 cm, have a center-to-center separation of 2.8 m. Sphere 1 has a charge of +1.2 × 10-8 C; sphere 2 has a charge of -3.3 x 10-8 C. Assume that the separation is large enough for us to assume that the charge on each sphere is uniformly distributed (the spheres do not affect each other). With V= 0 at infinity, calculate in volts (a) the potential at the point halfway between their centers and the potential on the surface of (b) sphere 1 and (c) sphere 2. (a) Number (b) Number i (c) Number i Units Units Units

(a) Three-point charges, A = 2.50 µC, B = 7.10 µC, and C = -3.90 µC, are located at the corners of an equilateral triangle as in the figure above. Find the magnitude and direction of the electric field at the position of the 2.50 µC charge. magnitude

Two tiny conducting spheres are identical and carry charges of -27.2 µC and +52.4 μC. They are separated by a distance of 2.28 cm. (a) What is the magnitude of the force that each sphere experiences? (b) The spheres are brought into contact and then separated to a distance of 2.28 cm. Determine the magnitude of the force that each sphere now experiences. (a) Number i (b) Number i Units Units >

21. A disk 8.00 cm in radius rotates at a constant rate of 1 200 rev/min about its central axis. Determine (a) its angular speed in radians per second, (b) the tangen- tial speed at a point 3.00 cm from its center, (c) the radial acceleration of a point on the rim, and (d) the total distance a point on the rim moves in 2.00 s. M

Four identical metallic objects carry the following charges: +1.23, +6.89, -4.44, and -9.28 μC. The objects are brought simultaneously into contact, so that each touches the others. Then they are separated. (a) What is the final charge on each object? (b) How many electrons (or protons) make up the final charge on each object? (a) Number i (b) Number IN Units Units

Two point charges are fixed on the x-axis as follows: Q1 = +5.00E-6 C is located at x = +0.300 m and Q2 = –7.00E-6 C is at x = +0.600 m. What are the magnitude and direction (use positive sign for +x and negative sign for –x directions) of the net electrical force exerted by these two charges on a third charge Q3 = –8.23E-6 C placed at the origin,Q3 = 0.00 m (in Newtons)?

Two metal spheres, each of radius 3.1 cm, have a center-to-center separation of 1.5 m. Sphere 1 has a charge of +1.3 × 10-8 C; sphere 2 has a charge of -2.7 x 10-8 C. Assume that the separation is large enough for us to assume that the charge on each sphere is uniformly distributed (the spheres do not affect each other). With V= 0 at infinity, calculate in volts (a) the potential at the point halfway between their centers and the potential on the surface of (b) sphere 1 and (c) sphere 2.