In a closed system, a group of objects moves energy only among themselves. In which part of the light bulb system is electrical energy being converted into light energy?A Part A

B
Part D

C
Part B
D
Part C

i think the answer is b

this is poiselle's equation from fluid mechanic in physics. mech eng

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