B will be the answer ( Radiation)
To solve this problem it is necessary to apply the concepts related to entropy. Entropy can be defined as the change between heat energy and body temperature. For this case we will analyze the entropy in the cold body and later in the hot body. From there we will find the entropy difference
Entropy can be defined as,
Here,
Q = Heat Flow
T = Temperature
The entropy of the hot reservoir goes down by
The entropy of the "cool" reservoir increases by
As expected, entropy increased in this process; the entropy lost by the hot side was less than the entropy gained by the cool side.
Answer:
Explanation:
a ) starting from rest , so u = o and initial kinetic energy = 0 .
Let mass of the skier = m
Kinetic energy gained = potential energy lost
= mgh = mg l sinθ
= m x 9.8 x 70 x sin 30
= 343 m
Total kinetic energy at the base = 343 m + 0 = 343 m .
b )
In this case initial kinetic energy = 1/2 m v²
= .5 x m x 2.5²
= 3.125 m
Total kinetic energy at the base
= 3.125 m + 343 m
= 346.125 m
c ) It is not surprising as energy gained due to gravitational force by the earth is enormous . So component of energy gained due to gravitational force far exceeds the initial kinetic energy . Still in a competitive event , the fractional initial kinetic energy may be the deciding factor .
Answer:
I think milligram is the correct answer.
He discovered the planet<span> Uranus.</span>