The fact that a refrigerator requires energy to move heat from a colder object (the inside of the refrigerator) to a hotter object (the outside of the refrigerator) is a real life observation of which law of thermodynamics?

Clausius statement of the Second Law of Thermodynamics.

Explanation:

The fact that refrigerator requires energy to move the heat from a colder reservoir to a hotter reservoir is a real life observation of the Clausius statement of the Second Law of Thermodynamics.

Clausius statement tells that it is impossible to construct a device operating in a cycle that transfer heat from a low temperature reservoir to a higher temperature reservoir without consuming any work.

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft