Question

Два одинаковых шарика, обладающие зарядами q1 =24*10-8 Кл и q2 = 6*10-8 Кл, находятся на расстоянии 4 см друг от друга. Их приводят в соприкосновение и затем удаляют на прежнее расстояние. Найти силу взаимодействия шариков до и после соприкосновения.

Answer 1

F=kq^2/r^2; q=(q1+q2)/2
q=24*10-8 Кл + 6*10-8 Кл = 15*10-8 Кл
F= 9*10^9 H*м^2/Кл^2*(15*10^-8 Кл)/(4*10^-2 м)^2=126,5625*10^-3 H

Answer 2

Calculation of the force of interaction between the two charged spheres before and after contact

To calculate the force of interaction between the two charged spheres before and after contact, we can use Coulomb's law, which states that the force between two charged objects is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

The formula for the force of interaction between two charged objects is given by:

F = (k * |q1 * q2|) / r^2

Where: - F is the force of interaction between the two charged objects, - k is the electrostatic constant (k = 9 * 10^9 Nm^2/C^2), - q1 and q2 are the charges of the two spheres, - r is the distance between the centers of the two spheres.

Given that the charges of the two spheres are q1 = 24 * 10^-8 C and q2 = 6 * 10^-8 C, and the distance between the spheres is 4 cm (or 0.04 m), we can calculate the force of interaction before and after contact.

Calculation of the force of interaction before contact

Before contact, the force of interaction between the two spheres can be calculated using the formula mentioned above:

F_before = (k * |q1 * q2|) / r^2

Substituting the given values:

F_before = (9 * 10^9 Nm^2/C^2 * |24 * 10^-8 C * 6 * 10^-8 C|) / (0.04 m)^2

Calculating the above expression gives us the force of interaction between the two spheres before contact.

Calculation of the force of interaction after contact

After contact, the charges of the two spheres will redistribute due to the principle of charge conservation. The total charge of the system remains the same, but the individual charges on the spheres may change.

To calculate the force of interaction after contact, we need to know the new charges on the spheres. Unfortunately, the given information does not provide any details about the redistribution of charges after contact. Therefore, we cannot accurately calculate the force of interaction after contact without additional information.

Please provide more information about the redistribution of charges after contact if available, so we can calculate the force of interaction accurately.