Ther.odynamics 1. A 120-lbm astronaut took his bathroom scale (a spring scale and a beam scale (comparesmasses) to the moon where the local gravity is g = 1.92 m/s². Determine how much he willweigh (a) on the spring scale and (b) on the beam scale. Answer: (a) 23.48 lbf2. The temperature of ambient air in a certain location is measured to be - 55°C. Express thistemperature in Fahrenheit (°F), Kelvin (K), and Rankine (R) units,3. The temperature of a system drops by 30°F during a cooling process. Express this drop intemperature in K, R, and °C.4. A vacuum gage connected to a chamber reads 0.26 bar at a location where the atmosphericpressure is 95 kPa. Determine the absolute pressure (in psi units) in the chamber. Answer: 10psi5. The pressure in a compressed air storage tank is 155 psi. What is the tank's pressure in (a)kN/m?; (b) bar; and (c) ksi?6. A gas is contained in a vertical, frictionless piston- cylinder device. The piston has a mass of2.10 kg and a cross sectional area of 6 in?. A compressed spring above the piston exerts aforce of 27 lbf on the piston. If the atmospheric pressure is 98 kPa, determine the pressureinside the cylinder. Draw the schematic diagram. Answer: 134.34 kPa7. What is the weight of a 1-kg substance inа. Nb. kN,c. kgfd. Ibf8. A closed vessel having a volume of 1.6 liters holds 3.4 x 1022 molecules of methanol vapor.For the methanol, determine (a) the amount present, in kg and kmol, and (b) the specificvolume, in m/kg and m/kmol. Answer: m = 0.00181 kg , v = 0.55 m²/kg9. The pressure from water mains located at street level may be insufficient for delivering waterto the upper floors of tall buildings. In such a case, water may be pumped up to a tank thatfeeds water to the building by gravity. For an open storage tank atop a 300-ft-tall building,determine the pressure, in lbf/in., at the bottom of the tank when filled to a depth of 20 ft.The density of water is 62.2 lb/ft, g = 32.0 ft/s, and the local atmospheric pressure is 14.7lbf/in.?. Answer: P = 23.29 lbf/in.

Answered: 1. A 120-lbm astronaut took his…

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter5: Temperature And Heat

Section: Chapter Questions

Problem 26P: In cold weather, you can sometimes "see" your breath. What you are seeing is a mist of small water...

See similar textbooks

Similar questions

On a nice winter day at the South Pole, the temperature rises to 60°F. What is the approximate temperature in degrees Celsius?
. On a winter day, the air temperature is — 15°C, and the humidity is 0,001 kg/m3. (a) What is the relative humidity? (b) When this air is brought inside a building, it is heated to 20°C. If the humidity isn't changed, what is the relative humidity inside the building?
What is the density of water vapor in g/m3 on a hot dry day in me desert when the temperature is 40.0C and the relative humidity 15 6.00%?
At 37 m below the surface of the sea (density of 1422 kg/m3), where the temperatureis 6◦C, a diver exhales an air bubble having avolume of 0.7 cm3.The acceleration of gravity is 9.8 m/s2.If the surface temperature of the sea is 24◦C,what is the volume of the bubble immediatelybefore it breaks the surface?Answer in units of cm3.
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.
An expensive vacuum system can achieve a pressure as low as 1.83 ✕ 10−7 N/m2 at 22°C. How many atoms are there in a cubic centimeter at this pressure and temperature? ________________________ atoms
A “typical” human body has a surface area of about 1.9 m2 and a surface temperature of about 33oC (306K), a little cooler than the core temperature. If they are radiating heat at a rate of 804W, what is their emissivity? Do not actually solve the problem numerically or algebraically, just pick the one equation and define the relevant knowns and single unknown
On mars, the surface temperature can be 55 F What is this temperatures in Celsius scale? (Hint: T F =(9/5)T C +32)
The weather channel reported that the current temperature at the town of Fairbanks Alaska is 50 °F. What is the corresponding value of this temperature on the Centigrade scale?
1. An expensive vacuum system can achieve a pressure as low as 1.83 ✕ 10−7 N/m2 at 26°C. How many atoms are there in a cubic centimeter at this pressure and temperature? 2. The number of kilocalories in food is determined by calorimetry techniques in which the food is burned and the amount of heat transfer is measured. How many kilocalories per gram are there in a 4.80 g peanut if the energy from burning it is transferred to 0.600 kg of water held in a 0.130 kg aluminum cup, causing a 44.0°C temperature increase?
In 2000, a gargantuan iceberg broke away from the Ross Ice Sheet in Antarctica. It was approximately a rectangle with dimensions 295 km295 km long, 37.0 km37.0 km wide, and 250.0 m250.0 m thick. What is the mass of this iceberg, given that the density of ice is 917 kg/m3917 kg/m3? How much heat transfer ?Q in joules is needed to melt the iceberg? Assume that the temperature of the iceberg is uniform at 0∘C.0⁢∘C. The latent heat of fusion for water is 334 kJ/kg. How many years would it take sunlight alone to melt ice this thick if the ice absorbs an average of 113 W/m2,113 W/m2, 12.0 h12.0 h per day?
Consider a low-speed flight of the space shuttle as it is nearing a landing. If the air pressure and temperature at the nose of the shuttle are 121,590 Pa and 400K, respectively, what is the density? detailed solution pls, Thank you

SEE MORE QUESTIONS

Recommended textbooks for you

Inquiry into Physics

Physics

ISBN:

9781337515863

Author:

Ostdiek

Publisher:

Cengage

College Physics

Physics

ISBN:

9781938168000

Author:

Paul Peter Urone, Roger Hinrichs

Publisher:

OpenStax College

University Physics Volume 2

Physics

ISBN:

9781938168161

Author:

OpenStax

Publisher:

OpenStax

Inquiry into Physics

Physics

ISBN:

9781337515863

Author:

Ostdiek

Publisher:

Cengage

College Physics

Physics

ISBN:

9781938168000

Author:

Paul Peter Urone, Roger Hinrichs

Publisher:

OpenStax College

University Physics Volume 2

Physics

ISBN:

9781938168161

Author:

OpenStax

Publisher:

OpenStax

SEE MORE TEXTBOOKS

1. A 120-lbm astronaut took his bathroom scale (a spring scale and a beam scale (compares masses)) to the moon where the local gravity is g = 1.92 m/s². Determine how much he will weigh (a) on the spring scale and (b) on the beam scale. Answer: (a) 23.48 lbf