Calculate the terminal velocity of a droplet (radius =r, density=\rho_d) when its settling in a stagnant fluid (density=\rho_f).

Explanation:

Given that

Radius =R

When drop let will move downward then so

Fb = Bouncy force

Fd = Drag force

We know that

μ=Dynamic viscosity of fluid

V= Terminal velocity

So at the equilibrium condition

So

This is the terminal velocity of droplet.

particle   p is an electron and particle q is a neutron

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.