grain is pored into a silo to be stored for later use. due to the friction between pieces of grain as they rub against eachother during the pouring process, one piece of grain picks up a charge of 6.0e-10c and another piece of grain picks up a charge of 2.3e-15c. what is the electric force between them if the pieces are 2 cm apart?
Electric force = .
Charge on one grain,
Charge on second grain,
Distance between the two grains is,
Electric force acting between two charges separated by a distance is:
Where, is Coulomb's constant equal to .
Now, plug in the given values and solve for .
Therefore, the electric force between them is .
Use Coulomb's law:
F = k q₁ q₂ / r²
F = (9×10⁹) (6.0×10⁻¹⁰) (2.3×10⁻¹⁵) / (0.02 m)²
F = 3.1×10⁻¹¹
grain is pored into a silo to be stored for later use. due to the friction between pi...