The electric force between two objects can be understood by looking at Coulomb's Law. The law states that the electric force is directly proportional to the charges of the 2 objects, and inversely proportional as the square of the distance. This is shown below:
F = (k * Q1 * Q2) / d^2
Where: k = proportionality constant; Q1 = charge of object 1; Q2 = charge of object 2; d = distance between objects.
Given:
F = <span>3.0 × 10^-3 N
Q1 = </span>3.3 × 10^-8 coulombs<span>
Q2 = ?
d = </span><span>6.0 × 10^-2 m
</span><span>k = 9.0 × 10^9
Substituting:
3 x 10^-3 = (9 x 10^9 * 3.3 x 10^-8 * Q2) / (6 x 10^-2)^2
[(</span>3 x 10^-3) * (6 x 10^-2)^2] / [(<span>9 x 10^9) * (3.3 x 10^-8)</span>] = Q2
Q2 = 3.636 x 10^-8 coulombs
Answer:
Synthetic polymers are lightweight
Explanation: took the test
The total momentum of the astronaut holding the wrench is the same as the sum of the momenta of the astronaut initially and the wrench moving toward him. That is, total linear momentum is always conserved. So initially:
This will be the momentum of the astronaut holding the wrench afterward:
He will then be moving at 0.2381 m/s in the same direction the wrench was moving initially.
Answer:
They would decline
Explanation:
They would either migrate, or die.