Answer / Nitin Trivedi

When an ice cube is placed in a rotating container of hot water, the ice cube spins faster due to the conservation of angular momentum. As heat transfers from the hot water to the ice cube, the ice cube melts and its mass decreases. This results in an increase in its rotational speed to conserve angular momentum.

Explain how do motion detectors work?

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sir,i appllied junier engineer engineer in rrb chennai,i need syllabus for the topic of apptitude,reasonong,general english and mechanical engineering,and general studies.please sent my mail id aravindaptc@yahoo.co.in.

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