This rock appear to have formed in materials deposited in water it is most likely

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)

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87

What is friction? how does it affect the motion of an object?