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Question 1: A car starts driving towards you. It is accelerating with constant acceleration. At time t=0, the car passes you. At that moment, it starts to slow down with constant deceleration until it stops. The speed of the car is shown in the left picture. The car has a buzzer on top producing a sound with frequency fo. Which graph illustrates the frequency you hear best? +==++ 0 Question 3: Sound waves are: A. Transverse waves of small variations in air pressure B. Transverse waves of small variations in air speed Question 2:A cylindrical container is filled with a gas. On top of the container sits a heavy piston that is free to move. The gas in the container is cooled down. Which graph below best represents this process. KERK C. Longitudinal waves of small variations in air pressure D. Longitudinal waves of small variations in air speed A. V B. V (nitrogen) is smaller than Vi (oxygen) (nitrogen) is equal to vre (oxygen) CV (nitrogen) is larger than Vs (oxygen) D. Cannot be termined: the temperature T of the gas is needed t Question 4: A bottle at a certain pressure and a certain temperature contains gaseous air (mostly consisting of nitrogen and oxygen). The molecular mass of nitrogen is smaller than the molecular mass of oxygen. Compare the Vis of the nitrogen and oxygen molecules: D A. Both bottles will sink. B. The bottle in water will sink, the one in mercury will float C. The bottle in mercury will sink, the one in water will float D. Both bottles will float Question 5: Two bottles filled with sand (density 1,500 kg/m") are thrown in fluids. One in water (density 1,000 kg/m3) and one in mercury (density 13,600 kg/m³). Do the bottles float or sink? Question 1: A car starts driving towards you. It is accelerating with constant acceleration. At time t=0, the car passes you. At that moment, it starts to slow down with constant deceleration until it stops. The speed of the car is shown in the left picture. The car has a buzzer on top producing a sound with frequency fo. Which graph illustrates the frequency you hear best? +==++ 0 Question 3: Sound waves are: A. Transverse waves of small variations in air pressure B. Transverse waves of small variations in air speed Question 2:A cylindrical container is filled with a gas. On top of the container sits a heavy piston that is free to move. The gas in the container is cooled down. Which graph below best represents this process. KERK C. Longitudinal waves of small variations in air pressure D. Longitudinal waves of small variations in air speed A. V B. V (nitrogen) is smaller than Vi (oxygen) (nitrogen) is equal to vre (oxygen) CV (nitrogen) is larger than Vs (oxygen) D. Cannot be termined: the temperature T of the gas is needed t Question 4: A bottle at a certain pressure and a certain temperature contains gaseous air (mostly consisting of nitrogen and oxygen). The molecular mass of nitrogen is smaller than the molecular mass of oxygen. Compare the Vis of the nitrogen and oxygen molecules: D A. Both bottles will sink. B. The bottle in water will sink, the one in mercury will float C. The bottle in mercury will sink, the one in water will float D. Both bottles will float Question 5: Two bottles filled with sand (density 1,500 kg/m") are thrown in fluids. One in water (density 1,000 kg/m3) and one in mercury (density 13,600 kg/m³). Do the bottles float or sink?
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