If the speed of a vehicle increases by 22%, by what factor does its kinetic energy increase?

The kinetic increases by 48.84 %

Explanation:

The expression for the kinetic energy is:-

Where, m is the mass of the object

v is the velocity of the object

Let the new velocity is:- v'

v is increased by 22 %. Thus, v' = 1.22 v

So, the new kinetic energy is:-

Thus, the kinetic increases by 48.84 %

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.