When a volcano erupts, tiny particles from which of Earth’s spheres are released into the air? atmosphere
biosphere
geosphere
hydrosphere
pls hury

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

Rohit is trying to tune an instrument

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)