21ST CENT.ASTRONOMY(LL)W/CODE WKBK PKG.
6th Edition
ISBN: 9780393874921
Author: PALEN
Publisher: Norton, W. W. & Company, Inc.
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Chapter 9, Problem 6QP
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Suppose you are a miner and you drank a can of soda inside a deep mine. There, the soda tastes flat. But when you rode the mine shaft elevator, you keep on burping as you ascend to the surface. Why is that?
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5. True or false. In each case, explain your answer quantitativeły. Information that you might find useful:
the escape speed from near Earth's surface is = 10*m/s.
(a) Helium atoms on the surface of the Earth can escape into space.
(b) Helium atoms moving at average speed on the surface of the Earth can escape into space.
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Chapter 9 Solutions
21ST CENT.ASTRONOMY(LL)W/CODE WKBK PKG.
Ch. 9.1 - Prob. 9.1CYUCh. 9.2 - Prob. 9.2CYUCh. 9.3 - Prob. 9.3ACYUCh. 9.3 - Prob. 9.3BCYUCh. 9.4 - Prob. 9.4CYUCh. 9.5 - Prob. 9.5CYUCh. 9 - Prob. 1QPCh. 9 - Prob. 2QPCh. 9 - Prob. 3QPCh. 9 - Prob. 4QP
Ch. 9 - Prob. 5QPCh. 9 - Prob. 6QPCh. 9 - Prob. 7QPCh. 9 - Prob. 8QPCh. 9 - Prob. 9QPCh. 9 - Prob. 10QPCh. 9 - Prob. 11QPCh. 9 - Prob. 12QPCh. 9 - Prob. 13QPCh. 9 - Prob. 14QPCh. 9 - Prob. 15QPCh. 9 - Prob. 16QPCh. 9 - Prob. 17QPCh. 9 - Prob. 18QPCh. 9 - Prob. 19QPCh. 9 - Prob. 20QPCh. 9 - Prob. 21QPCh. 9 - Prob. 22QPCh. 9 - Prob. 23QPCh. 9 - Prob. 24QPCh. 9 - Prob. 25QPCh. 9 - Prob. 26QPCh. 9 - Prob. 27QPCh. 9 - Prob. 28QPCh. 9 - Prob. 29QPCh. 9 - Prob. 30QPCh. 9 - Prob. 31QPCh. 9 - Prob. 32QPCh. 9 - Prob. 33QPCh. 9 - Prob. 34QPCh. 9 - Prob. 35QPCh. 9 - Prob. 36QPCh. 9 - Prob. 37QPCh. 9 - Prob. 38QPCh. 9 - Prob. 39QPCh. 9 - Prob. 40QPCh. 9 - Prob. 41QPCh. 9 - Prob. 42QPCh. 9 - Prob. 43QPCh. 9 - Prob. 44QPCh. 9 - Prob. 45QP
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- Explain why the Moon and Mercury possess only very weak, transient atmospheres consisting of constituents temporarily captured from the solar wind or released by collisions with interplanetary debris.arrow_forwardDuring forced exhalation, such as when blowing up a balloon, the diaphragm and chest muscles create a pressure of 60.0 mm Hg between the lungs and chest wall. What force in newtons does this pressure create on the 600 cm2 surface area of the diaphragm?arrow_forwardReview, (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.arrow_forward
- How many cubic meters of helium are required to lift a light balloon with a 400-kg payload to a height of 8 000 m? Take Hc = 0.179 kg/m3. Assume the balloon maintains a constant volume and the density of air decreases with the altitude z according to the expression pair = 0e-z/8 000, where z is in meters and 0 = 1.20 kg/m3 is the density of air at sea level.arrow_forward(a) Find the average time required for an oxygen molecule to diffuse through a 0.200-mm-thick tear layer on the cornea. (b) How much time is required to diffuse 0.500 cm3 of oxygen to the cornea if its surface area is 1.00 cm2?arrow_forward(a) How high will water rise in a glass capillary tube with a 0.500-mm radius? (b) How much gravitational potential energy does the water gain? (c) Discuss possible sources of this energy.arrow_forward
- 3. Now you will design a pressure receptor. First, draw a circle on a piece of paper and then draw two or three lines from the center to beyond the perimeter of the circle. Imagine that the circle represents a balloon and the lines are threads, which are attached to the surface of the balloon. How would blowing into the balloon, to increase the pressure of the air inside, affect: a. The size of the balloon? b. The threads attached to the surface of the balloon? c. Imagine that the threads are the terminals and axons of sensory neurons. If the terminals are sensitive to stretch, what will happen to the frequency of the action potentials in the axons as the pressure inside the balloon is changed?arrow_forwardAsaparrow_forward6arrow_forward
- Terminal Velocity 2. Given: Atmospheric pressure = 101.3 kPA Air density = 1.20 kg/cubic meter Size of rain droplet; Set C=0.6mm, Temperature = 20 deg. C Determine; a. The force due to gravity and buoyant force in N. b. What is the drag force in N if the rain drop is in state of equilibrium? Consider vertical forces only c. If the temperature becomes 40 deg C (density varies), compare the terminal velocity, make a conclusion. Use drag coefficient same with 20 deg C. d. If the diameter of rain drop is 2.0 mm, compare the terminal velocity, make a conclusion.arrow_forwardWhich of the following is true about a real gas? A. The attractive forces among the gas particles become significant. B. The kinetic energy of the gas particles does not change during collisions. C. The space that the gas particles occupy is too small compared to the total volume. D. The gas particles move only in linear paths.Please explain, thank you.arrow_forward6arrow_forward
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