5) In the Swiss Alps, the air pressure is relatively low due to the high elevation. Assuming an air pressure of 75 kPa and a temperature of 4°C, how many air molecules will there be in a 1 liter (10-3 m³) bottle? a) 1 x 1022 b) 2x 1022 c) 3 x 1022 d) 4 x 1022 e) 5 x 1022 f) 6 × 1022 6) An alphorn plays a sustained tone at 29 Hz. A second, smaller alphorn produces 120 beats per minutes when played with the 29 Hz instrument. What is the frequency of this second alphorn? a) 2 Hz b) 27 Hz c) 29 Hz d) 31 Hz e) 120 Hz f) 149 Hz Short Answer Question Model an alphorn as an open-closed pipe with a first harmonic (m=1) frequency of 29 Hz. . Sketch the first (m=1) harmonic showing it at two different times. ⚫ Determine the wavelength (in m) of the first harmonic. . What is the length of the pipe (in m)? ⚫ Calculate the frequency (in Hz) of the next two harmonics.

5) In the Swiss Alps, the air pressure is relatively low due to the high elevation. Assuming an air pressure of 75 kPa and a temperature of 4°C, how many air molecules will there be in a 1 liter (10-3 m³) bottle? a) 1 x 1022 b) 2x 1022 c) 3 x 1022 d) 4 x 1022 e) 5 x 1022 f) 6 × 1022 6) An alphorn plays a sustained tone at 29 Hz. A second, smaller alphorn produces 120 beats per minutes when played with the 29 Hz instrument. What is the frequency of this second alphorn? a) 2 Hz b) 27 Hz c) 29 Hz d) 31 Hz e) 120 Hz f) 149 Hz Short Answer Question Model an alphorn as an open-closed pipe with a first harmonic (m=1) frequency of 29 Hz. . Sketch the first (m=1) harmonic showing it at two different times. ⚫ Determine the wavelength (in m) of the first harmonic. . What is the length of the pipe (in m)? ⚫ Calculate the frequency (in Hz) of the next two harmonics.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

3) Mars's Perseverance Rover left the NASA's space station with an ambient temperature of 12°C. During its journey in space between the Earth and Mars, it endured 49'R. Upon landing on the Martian surface, the Mars's Perseverance Rover recorded a surface temperature of -81°F. a) What is the temperature difference between the Martian surface and the NASA's space station's ambient temperature in Kelvin? b) What is the temperature difference °F when the Mars's Perseverance Rover exited the Earth from NASA's space station and entered the vacuum of space?
4) A balloon used for sampling stratospheric ozone is filled with 160.0 kg of He. What is the volume of the balloon when the balloon rises to 10,000 ft (3048 m, the height of a medium sized mountain) wherein the instruments report that the temperature is - 50 °C and the pressure is 6.479 x 104 Pa.
2. A student measures the length of a brass rod at 20.0°C. The reading is 95.00 cm. What will be the length of the rod when the temperature is at: (a) - 15.0°C? (5 pts) (b) 55.0°C? (5 pts)
Initially the volume of a gas is 0.5m3 and the pressure is 30000Pa. If the gas is then isovolumetrically pressurized so that P2=2.5P1, what is the new volume of the gas? a) 0.25m3 b) 0.15m3 c) 0.5m3 d) 3m3 e) 2.5m3
1. The space satellite Explorer V was made of aluminum and had a diameter of 36.0 cm at 0°C. It cooled off to -35°C when it reached its orbital height. What is the change in volume? (INCLUDE FBD) 2. A petroleum sample has a specific gravity of 0.847 at 20°C. If the coefficient of volume expansion of the petroleum is 0.000899 per °C, what is the specific gravity at 70°C? 3. Liquid oxygen freezes at -218.4°C and boils at 183°C. Express these temperature in terms of Fahrenheit scale.
3-4. Determine the composition in weight fraction and the composition in volume fraction of the gas given below. What assumption did you make? Composition, mole fraction Component 0.6904 0.0864 0.0534 0.0115 0.0233 0.0093 0.0085 0.0173 0.0999 Methane Ethane Propane |- Butane n-Butane i- Pentane n-Pentane Hexanes Heptanes plus 1.0000 Properties of heptanes plus Specific gravity Molecular weight 0.827 158 Ib/b mole B- The gas of Exercise 3-4 is a retrograde gas. However, discovery pressure in reservoir, 7000 psig, is higher than dew point pressure, 6010 psig. Reservoir temperature is 256°F. The reservoir lies under 7040 acres, has an average thickness of 13 ft, has a porosity of 11%, and has a water saturation of 40%. Calculate the mass of gas in the reservoir at initial conditions. Give your answer in lb moles.
3. If the temperature of an ideal gas is raised from 30 °C to 210 °C, how many times faster is the new average (ms) speed of the gas molecules? times
1. An ideal gas pressure 'P', volume V' and absolute temperature T'. If 'm' is the mass each molecule and 'K' is the Boltzmann constant then density of the (Chap-9) gas is Pm A) KT KT B) Pm Km C) PT PK D) Tm
3. The compressed air tank has a volume of 0.5 m. The temperature is 30°C and the atmospheric pressure is 101.35 kPa. When the tank is filled with air at a gage pressure of 144.74 kPa, determine the density of the air and the weight of air in the tank. Hint: Ideal gas law should be used. R=287 m/s?K
2. A thermometer is removed from a room where the temperature is 70°F and is taken outside, where the air temperature is 10°F. After half a minute the thermometer reads 50°F. What is the reading of the thermometer at t = 1 minute? How long will it take for the thermometer to reach 15°F?
26) A 45.0-kg sample of ice is at 0.00° C. How much heat is needed to melt it? For water LF = 334,000 J/kg and Ly=2.256 x 106 J/kg. A) 0.00 kJ B) 1.02 x 105 kJ C) 1.50 × 104 kJ D) 4.10 x 106 kJ
14. The sun's temperature decreases steadily as the distance from its innermost regions increases. The sole exception to this is in the outermost part of the sun's atmosphere. This region, called the corona, consists of thin gases that are heated by the sun's magnetic field. As a result, the corona has an average temperature of about 1.0 x 10° K. What is this temperature in degrees Celsius? Must give answer then also | give answer in significant fig format