A stone is thrown up from the surface of earth when it reaches a maximum height it's kinetic energy is equal to

Kinetic energy at maximum height is zero.

Explanation:

At maximum height, the velocity is zero. Thus, the kinetic energy is also zero. This can further be seen as illustrated below:

Let the mass of the object be = m

Velocity (v) at maximum height = 0 m/s

Kinetic energy (KE) at maximum height =?

KE = ½mv²

KE = ½ × m × 0²

KE = ½ × m × 0

KE = 0

From the illustration above, we can see that the kinetic energy at maximum height is zero.

hi there!

your question asks at which segment does freezing occur.

since we're talking about water, the freezing point of water will be 32 degrees fahrenheit or below.

hope this ! ~

a.   mass number from atomic number