Answer:
Explanation:
According to Coulomb's law, the magnitude of the electric force between two point charges is directly proportional to the product of the magnitude of both charges and inversely proportional to the square of the distance that separates them:
Here k is the Coulomb constant. In this case, we have 
, 
and 
. Replacing the values:
The negative sign indicates that it is an attractive force. So, the magnitude of the electric force is:
My teacher said 36m when I asked her
Internal energy<span> is defined as the </span>energy<span> associated with the random, disordered motion of molecules. It is denoted by U and calculated by the expression:
</span>Δ<span>U = Q - W
We calculate as follows:
</span>ΔU = 68 J - 32 J
ΔU = 36 J
Endothermic: ice melting into water, and an instant ice pack turning cold
Exothermic: fireworks exploding, and gasoline burning
Human cells don't have<span> a </span>cell wall<span> in the same way that plants </span>do. We<span> </span>have cell<span> membranes which are more malleable structures than the </span>rigid cell walls<span> of plants.</span>
