A : Solid to liquid
Solids have a variable volume and shape before it changed. Liquids can change in shape but have a fixed volume ( ex: water holding it’s shape in the cup until the person spills it )
Answer:
rotational kinetic energy increases
Explanation:
when an ice skater pulls his arms closer to his body there is no rotational torque because we know that torque = F×R here R is the distance and when arms are closer to body distance is very less so there will be no torque and so angular momentum is conserved but moment of inertia is also decreases and we know that rotational kinetic energy =
where L= angular momentum
I = moment of inertia
as moment of inertia decreases and angular momentum is conserved so using the formula rotational kinetic energy increases
Coal, oil, natural gas, wood, charcoal
A method of investigation within which a controversy is first identified and observations, experiments, or other relevant data are then accustomed construct or test hypotheses that purport to resolve it. scientific socialism. n Marxist socialism.