Physics, 02.02.2020 17:58 johajackson2014
Why were epicycles necessary in ptolemy’s model of the universe?
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If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone
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Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?
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Avehicle accelerates from 0 to 30 m/s in 10 seconds on a straight road
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Physics, 22.06.2019 23:00
Awelder using a tank of volume 7.50×10^-2 m^3 fills it with oxygen (with a molar mass of 32.0 g/mol ) at a gauge pressure of 3.30×10^5 pa and temperature of 37.1 ∘c. the tank has a small leak, and in time some of the oxygen leaks out. on a day when the temperature is 23.1 ∘c, the gauge pressure of the oxygen in the tank is 2.00×10^5 pa . a) find the initial mass of oxygen. b) find the mass of oxygen that has leaked out.
Answers: 3
Why were epicycles necessary in ptolemy’s model of the universe?...
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