Physics, 28.07.2019 00:00 tryintopassenioryear
If an otherwise empty pressure cooker is filled with air of room temperature and then placed on a hot stove, what would be the magnitude of the net force f120 on the lid when the air inside the cooker had been heated to 120∘c? assume that the temperature of the air outside the pressure cooker is 20∘c (room temperature) and that the area of the pressure cooker lid is a. take atmospheric pressure to be pa. treat the air, both inside and outside the pressure cooker, as an ideal gas obeying pv=nkbt.
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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?
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If an otherwise empty pressure cooker is filled with air of room temperature and then placed on a ho...
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