How is the kelvin temperature of a substance related to the average kinetic energy of its particles?

The answer to your question is below

Explanation:

T = °K

Kinetic energy

Temperature is the measure of the kinetic energy of molecules, the higher the temperature the higher the kinetic energy.

When the temperature is 0°K the molecules will not move and the kinetic energy will be zero.

If the temperature is 373°K the molecules will move fast and the kinetic energy will also be high.

d) physical means can be used to separate the components of air.

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s