If the temperature is increased the particles gain more kinetic energy or vibrate faster. This means that they move faster and take more space.
Conduction and <span>convection it involves particles.</span>
Answer:
Synthetic polymers are lightweight
Explanation: took the test
To calculate the force between two negative charges, we use the formula which is given by the Coulomb`s Law as

Here,
and
are the charges on the pith balls, r is the separation between the charges and k is constant and its value is
.
Given
and
.
Substituting these values in above formula we get,

Thus, the repulsive force between two pith balls is
.