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Question: A structural layer is sandwiched between two identical insulation layers to reduce the temperature loss by 50%. Considering that the thermal conductivity of the insulation layers is 20 times smaller than the thermal conductivity of the structural layer, find the thickness of the insulation layer as a fraction of the structural layer thickness.
Status Newton's First Law of motion.
Light of wavelength 640nm falls on a slit that is 3.80 x 10-3 mm wide. How far the first bright diffraction fringe is from the strong central maximum if the screen is 13.0maway
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A thin (1 mg/cm2) target of 48Ca is bombarded with a 1 0-nA beam of cc particles. A detector, subtending a solid angle of 2 x 10-3 steradians, records 15 protons per second. If the angular distribution is measured to be isotropic, determine the tota..
In the Bohr model of the hydrogen atom, what is the de Broglie wavelength for the electron when it is in the n=1 level
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