Answer:
Explanation:
Given
mass of ice 
Height of hill 
Neglecting air resistance
As resistance is absent so Energy at top of hill and at the bottom hill is conserved.
Energy at top is equal to Potential Energy

Energy at bottom is equal to kinetic energy at bottom




Answer:
gs = 0.6 m/s^2
Explanation:
Given data:
velocity = 12 m/s
height s = 12t -(1/2) g_s t^2
Given velocity is the derivatives of height



when velocity tend to 0 , maximum height is reached



at t = 20 sec ball reached the max height, so

The Punnett square is a square diagram that is used to predict an outcome of a particular cross or breeding experiment. It is named after Reginald C. Punnett, who devised the approach. The diagram is used by biologists to determine the probability of an offspring having a particular genotype.