Amercury thermometer is placed in a gravity free hall without touching

1.	Amercury thermometer is placed in a gravity free hall without touching anything. As temperature risesmercury expands and ascend in thermometer. If height ascend by mercury in thermometer is h thenbywhat height centre of mass of "mercury and thermometer" system descend?hish io further kent on a
Answer» Here thermometer is placed in gravity free region So there is no external force on the system. When there is no force on the system its center of mass will retain its position and does not move if the whole system is initially at rest. So here the displacement of center of mass of the system will be ZERO. Sahi hai sir

Amercury thermometer is placed in a gravity free hall without touching anything. As temperature risesmercury expands and ascend in thermometer. If height ascend by mercury in thermometer is h thenbywhat height centre of mass of "mercury and thermometer" system descend?hish io further kent on a

Answer»

Here thermometer is placed in gravity free region

So there is no external force on the system.

When there is no force on the system its center of mass will retain its position and does not move if the whole system is initially at rest.

So here the displacement of center of mass of the system will be ZERO.

Sahi hai sir