Answer:d
Explanation:
Given systems are state of matter and do not contain any heat instead Heat is required to change Phase or raise the temperature of the particular system.
For example 600 kg of ice at 
Heat Required to convert it to water at is
Where L=latent heat of Fusion 
By <span> It is directly proportional to the </span>average kinetic energy<span>.</span>
I am crossed between A and D but i think A is the correct one.
The correct answer for this question is this one:Hope this helps answer your question and have a nice day ahead.
v( t)= sin( ωt) cos^2 ( ωt)
s(t) = ∫sin(ωt) cos^2 (ωt) dt
let cos(ωt) = u
-ωsin(ωt) dt = du
∫sin(ωt) cos^2 (ωt) dt = -(1/ω)∫u^2 du = -(1/ω)u^3 / 3 + const
s(t) = -(1/ω)cos^3(ωt) / 3 + const
s(0) = 0 => const = 1/(3ω)
s(t) = (1 - cos^3(ωt))/(3ω)
Nanometer, micrometer, millimeter, centimeter, meter, kilometer. Hope this helps!
