Two balls from rolling away from their initial postions

Reference no: EM13536359

Two small metal balls, carrying a charge +Q, are lying on an insulating surface a distance D apart. On either side of the two balls are small metal posts that are fixed to the surface. The distance between the posts and the balls is also D. The dimension of the balls and the posts are small compared to D. What charge Q must be put on each of the posts to prevent the two balls from rolling away from their initial postions?

Reference no: EM13536359

Questions Cloud

Prepare column account for each of items : Prepare Column account for each of items listed in trial balance and consider the adjusting entries and prepare adjusted trial balance.

Calculate the required peak voltage : An inductor (L = 350 mH), a capacitor (C = 4.43 µF), and a resistor (R = 570 ) are connected in series. A 50.0 Hz AC generator produces a peak current of 250 mA in the circuit. Calculate the required peak voltage ?Vmax

What are the masses of the two particles : A particle with a rest mass of M=135GeV/c^2 or 1.35x10^11 eV/c^2 decays into two particles (which emerge back-to-back). The speeds of the two particles are measured at v1=.9c and v2=.01c. What are the masses of the two particles?

How many vectors may be added by the polygon method : How many vectors may be added by the polygon method? Are other methods of vector addition limited to the number of vectors that can be added

Two balls from rolling away from their initial postions : Two small metal balls, carrying a charge +Q, are lying on an insulating surface a distance D apart. On either side of the two balls are small metal posts that are fixed to the surface. The distance between the posts and the balls is also D. The dimen..

What is the speed of the car-truck combination : A blue car with mass mc = 459.0 kg is moving east with a speed of vc = 19.0 m/s and collides with a purple truck with mass mt = 1245.0 kg that is moving south with a speed of vt = 10.0 m/s. What is the speed of the car-truck combination immediately..

Journalize adjusting entries and analyze effects : Journalize adjusting entries and analyze effects - Prepaid insurance, beginning, $700. Payments for insurance during the period, $2,100.

Building at the max height of its trajectory : A man throws a ball such that it strikes a wall of a building at the max height of its trajectory. If it takes 1.15 seconds to travel from man to the building, determine the velocity at which it was thrown, the angle, and the height of the building.

What is the average power generated by the horn? : A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 54 dB by an observer 10 km away. Treat the horn as a point source and neglect any absorption of sound by the air. What is the average power generated..

User Account

All Pages