A10.00 kg mass is attached to a 250n/m spring and set into vertical oscillation. when the mass is 0.50m above the equilibrium it is moving at speed 2.4 m/s. find the amplitude of the oscillation

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)

Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?

What is the role of lenses in microscopy?