Answered: Goose down sleeping bags and parkas are… | bartleby

Related questions

Question

Goose down sleeping bags and parkas are often specified as
so many inches or centimeters of loft, the actual thickness
of the garment when it is fluffed up. Explain

Expert Solution

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Blurred answer

Similar questions

(1) Hydrostatic balance states Op Əz Equation -1 where p is pressure, z is altitude, p is density and g is the acceleration due to gravity. It can be shown that the reciprocal of hydrostatic balance also applies. That is Equation -2 дz Әр = -Pg, = 1 pg Use the ideal gas law (p = pRT, where R is the gas constant for dry air and Tis temperature) to eliminate p from (2). (2) Under geostrophic balance, the following balance is approximately satisfied Equation -3 fu=-g ¹ (3) where f is the Coriolis parameter, u is the zonal wind, y is meridional distance and z is altitude. (Note that the derivative on the right hand side is taken at constant pressure.) Differentiate (3) with respect to p, and use your expression from part 1 to obtain an expression relating du/ap and T/ay. This expression is called "thermal wind balance".
In state-of-the-art vacuum systems, pressures as low as 1.00 X 10-9 Pa are beingattained. Calculate the number of molecules in a 1.00 m3 vessel at this pressure anda temperature of 27.0°C.
(a) How many atoms of helium gas fill a spherical balloon of diameter 30.6 cm at 23.0°C and 1.00 atm? Enter a number lationship between pressure, volume and temperature for an ideal gas? atoms (b) What is the average kinetic energy of the helium atoms? (c) What is the ms speed of the helium atoms? km/s