If a hydrometer is immersed in sugar solution and pure water in which it immerses more. Why?
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The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?

Difference between natural and artifical magnet