. (II) Archimedes' principle can be used to determine the specific gravity of a solid using a known liquid (Example 10–8 0). The reverse can be done as well. (a) As an example, a 3.80-kg aluminum ball has an apparent mass of 2.10 kg when submerged in a particular liquid: calculate the density of the liquid. (b) Determine a formula for finding the density of a liquid using this procedure.

. (II) Archimedes' principle can be used to determine the specific gravity of a solid using a known liquid (Example 10–8 0). The reverse can be done as well. (a) As an example, a 3.80-kg aluminum ball has an apparent mass of 2.10 kg when submerged in a particular liquid: calculate the density of the liquid. (b) Determine a formula for finding the density of a liquid using this procedure.

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: The Kinetic Theory Of Gases

Section: Chapter Questions

Problem 21.72AP: Review, (a) H it has enough kinetic energy, a molecule at the surface of the Earth can escape the...

See similar textbooks

Similar questions

How do gases differ from liquids?
Review, (a) H it has enough kinetic energy, a molecule at the surface of the Earth can escape the Earths gravitation in the sense that it can continue to move away from the Earth forever as discussed in Section 13.6. Using the principle of conservation of energy, show that the minimum kinetic energy needed for escape is m0gRE where m0 is the mass of the molecule, g is the free-fall acceleration at the surface, and RE is the radius of the Earth, (b) Calculate the temperature for which the minimum escape kinetic energy is ten times the average kinetic energy of an oxygen molecule.
The greater the IMFS the weaker the substance's surface tension. O True False
Viscosity of fluid plays a significant role in the analyses of many fluid dynamics problems. The viscosity of water can be determined from the following correlation: 410(72,) where e = viscosity (N/s•m²) T- temperature (K) a - 2.414 x 1 0- 2 - 247.8 (K) %3D s = 140 (K) What is the appropriate unit for c, if the above equa- tion is to be homnogeneous in units?
2. Knudsen number variationA space capsule is 15.6 feet in diameter and weighs 22 metric tons at Earth sea level.(a) Calculate the Knudsen number for the capsule at Earth sea level. Assume a molarmass of 28.9 ×10−3 kg/mol, a molecular diameter of 0.36 nm, and a density of1.225 kg/m3.(b) Calculate the Knudsen number for the capsule as it is approaching the Interna-tional Space Station in low Earth orbit (LEO), 300 km above sea level during a pe-riod of extremely high solar activity. Assume a molar mass of 18.1 ×10−3kg/mol,a molecular diameter of 0.34 nm, and a density of 1.7 × 10−11 kg/m3.(c) Calculate the particle number density at LEO.
a) Suppose the mass density of a G0 star is given by the following expression: p(r) = Po [4) -]• where R is the radius of the star. i) Determine the central pressure. ii) In our studies, we derived an approximation for the total mechanical energy of a star by assuming its density was constant and given by the total mass divided by the volume of a spherical star. Given the density distribution above, determine a revised equation for the total mechanical energy for the star.
The pressure in interplanetary space is estimated to be of the order of 10^-14 Pa. Calculate: A) the average number of molecules per cubic meter B) the number of molecules colliding per cubic meter per second C) the mean free path in miles. Assume thay the only hydrogen atoms are present and free temperature is 1000k. Assume molecular diameter 0.2 mm. Show complete solution, and round the final answer up to 4 decimal places.
[11] An experimental balloon contains hydrogen gas (H2) at a temperature of 300 K and a pressure of 1 atm (1.01 X 10° N / m?). (a) Calculate the mean-free path of a hydrogen molecule. Assume that a H2 molecule is effectively spherical, with a mean diameter of 1.6 X 1010 m. (b) Calculate the available volume per molecule (VI N), and find the average distance between each molecule and its nearest neighboring molecule (approximately the cube root of the available volume). Which is larger, the mean free path or the average nearest-neighbor distance between molecules? Exploring relationships
-3 A chamber containing O₂ at 100 K and 10³ atm is placed in the outer space. The oxygen leaks to the outer space through a small hole, 1 µm diameter, in the chamber wall. a) Estimate the number of molecules that escape from the container per b) What is the mass flux? What is the mass flow rate? unit time.
1. The figure shows the natural loga- rithm of the particle density of air (p = 1.225 kg m-3 at h = 0) for a constant temperature. Given that the linear fit to the data is In(n) = 58.533 at h = 0 and In(n) 57.386 at h = 10ª m, stating any assumptions used, 10 2000 4000 6000 8000 Height, h [m] (a) calculate the average mass of an air particle, (b) determine the temperature of the air. Number density, In(n) [m] 57.5 58 58.5
3. If p is pressure and y is coordinate, state, in the {MLT} system, what is the dimension of the quantities below? (a) oploy: (b) S p dy: (c) ở pla: () Vp.
60 D2 D1 The last 40 ° C until the water vapor pressure in the tube shown in Figure 0.75 t/m 2 d. Be that atmospheric pressure in the high curent 68 cm-Hg-column, one section of dianeter D= 60 cm. the second section of diameter D, = 14 cm, the first pressure value in the section P= 0.35 kg / cm 2 by that the cavitation neglecting the energy losses Determine the flow rate to start. Note: Use a period (.) as a decimal separator in your answers. Otherwise, even if your result is correct, it will be considered incorrect by the system. Q= m3 /sec