a. A train has a brass band playing a song at frequency 20C Hz. As the...

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a. A train has a brass band playing a song at frequency 20C Hz. As the train passes the station, a person on the platform hears a band playing a note at 1500 Hz, Vsnd = 340 m/s, Calculate the speed of the train? b. You use a barometer made up from unknown liquid. The liquid level rises to A m when you measure the atmospheric pressure. Calculate the density of unknown liquid? Atmospheric pressure is 1.01x10³N/m² c. A copper cylinder of length 2.0 m and radius 0.5 m is placed in a liquid oil of density 5C kg/m³, calculate the buoyant force acting on the cylinder? d. Calculate the amount of heat needed to change the temperature of C g of liquid water at 10°C to 100°C steam. Specific heat of water is 4186 J/kg °C, specific heat of ice is 2093 J/kg °C, and latent heat of fusion is 3.33 x10 J/kg and latent heat of vaporization is 2.25 x10 J/kg? e. B kg of water at 90°C is poured into a bucket that contains 2.0 kg of ice at 0°C. Calculate the equilibrium temperature (neglect the influence of the bucket)? f. Calculate the frequency ratio (fx/fy) of the first harmonics of two tubes (X and Y) if you blow air into them. Tube X opens at both ends and tube Y closes at one end (tube lengths are the same) a. A train has a brass band playing a song at frequency 20C Hz. As the train passes the station, a person on the platform hears a band playing a note at 1500 Hz, Vsnd = 340 m/s, Calculate the speed of the train? b. You use a barometer made up from unknown liquid. The liquid level rises to A m when you measure the atmospheric pressure. Calculate the density of unknown liquid? Atmospheric pressure is 1.01x10³N/m² c. A copper cylinder of length 2.0 m and radius 0.5 m is placed in a liquid oil of density 5C kg/m³, calculate the buoyant force acting on the cylinder? d. Calculate the amount of heat needed to change the temperature of C g of liquid water at 10°C to 100°C steam. Specific heat of water is 4186 J/kg °C, specific heat of ice is 2093 J/kg °C, and latent heat of fusion is 3.33 x10 J/kg and latent heat of vaporization is 2.25 x10 J/kg? e. B kg of water at 90°C is poured into a bucket that contains 2.0 kg of ice at 0°C. Calculate the equilibrium temperature (neglect the influence of the bucket)? f. Calculate the frequency ratio (fx/fy) of the first harmonics of two tubes (X and Y) if you blow air into them. Tube X opens at both ends and tube Y closes at one end (tube lengths are the same)

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Id be happy to help you solve these physics problems Here are the solutions a Train Speed Use the Doppler effect formula fo fs v Vs v Vr Where fo obse... View the full answer