PLZZZ HEELLPP ASAP A glass vessel contains tungsten balls and is filled with mercury to a certain mark. It is found that the mercury level always remains at this
mark when the glass vessel is heated. What is the ratio of volume of Hg
to that of tungsten at 0°C. (linear expansivity of glass= 8 x 10^-6 /°C , cubical expansivity of mercury
18 x
10^-5 /°C and linear expansivity of tungsten= 4.4 x 10^-6 /°C)

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

Use the information presented in the graph to answer the questions. which segments show acceleration? which segment indicates that the object is slowing down? what is the velocity of segment b? what is the acceleration of segment b?

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)