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Physics, 22.06.2019 09:00
Infrared rays have a shorter wavelength than question 11 options: x-rays. ultraviolet rays. radio waves. gamma rays.
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Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?
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Physics, 22.06.2019 21:40
Ahair dryer is basically a duct in which a few layers of electric resistors are placed. a small fan pulls the air in and forces it through the resistors where it is heated. air enters a 1200 w hair dryer at 100 kpa and 22°c and leaves at 47°c. the cross-sectional area of the hair dryer at the exit is 60 cm2. neglecting the power consumed by the fan and the heat losses through the walls of the hair dryer, determine (a) the volume flow rate of air at the inlet and (b) the velocity of the air at the exit.
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Physics, 22.06.2019 22:30
Find v1, the speed of the fluid in the left end of the main pipe. express your answer in terms of h1, h2, g, and either a1 and a2 or γ, which is equal to a1a2.
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After climbing a mountain you have 15,000 joules of gravitational energy. You burned 20,000 joules o...
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