Question: A volume containing a photon-baryon fluid is adiabatically expanded or compressed. The energy density of the fluid is e = E, + bary, and

A volume containing a photon-baryon fluid is adiabatically expanded or compressed. The

A volume containing a photon-baryon fluid is adiabatically expanded or compressed. The energy density of the fluid is e = E, + bary, and the pressure is P = P, = 6/3. What is dP/de for the photon-baryon fluid? What is the sound speed, c,? In equation (12.27) of Ryden, how large of an error is made in the estimate of A,(before) by ignoring the effect of the baryons on the sound speed of the photon- baryon fluid?

Step by Step Solution

★★★★★

3.41 Rating (167 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Accounting Questions!

Compare the energy density of oil and geothermal fluid at 250 C pumped from oil/geothermal wells at a rate of 30 L/s. To make a fair comparison, assume that the oil is transformed into useful...

Compute an upper bound on the energy density of a lead-acid battery in which the overall chemical process is ? and for each such reaction two electrons pass around the external circuit, assuming that...

A photon with momentum p = 1.02 MeV/c, where c is the velocity of light, is scattered by a stationary free electron, changing in the process its momentum to the value p = 0.255 MeV/c. At what angle...

You are improving your back yard. One of the features that you want is an octagonal (16-foot across) gazebo. You need to decide to either do it yourself or hire a contractor. You have researched...

This problem extends the reasoning of Section 26.4, Problem 26.37, Example 30.6, and Section 32.3. (a) Consider a capacitor with vacuum between its large, closely spaced, and oppositely charged...

Seventy-five liters of liquid ethanol at 70.0C and 55 L of liquid water at 20.0C are to be mixed in a well-insulated flask. The energy balance for this constant pressure process is Q = H. (a)...

Highway Construction Incorporated (HCI) bought a large piece of construction equipment at the beginning of 20X5. The construction equipment was a large piece of heavy equipment with an original cost...

Ahmed Diba is the controller of the Body Products Division of World Wide Drugs (WWD). It is located in Winnipeg, which is also the head quarters of WWD. Diba is helping develop a proposal for a new...

A vessel of 0.15-m3 volume containing saturated-vapor steam at 150oC is cooled to 30oC. Determine the final volume and mass of liquid water in the vessel?

The 2014 financial statements of BigJet Airlines, Ltd. included the following: INDEPENDENT AUDITORS' REPORT to the Shareholders of BigJet Airlines Ltd. We have audited the accompanying consolidated...

Security A B C D E Consider the following information: Time to maturity Inflationary (years) expectation 3 6% 5 5.5 6 5 7 4.8 10 6 Risk premium 4% 5 2 3 6 a. Suppose the rate of return on 3-month...

Implement the design of the Motorcycle class so that the following output is produced: [Your code should work for any number of services added in the add_Services method] # Write your code here # Do...

1 5 1 1 x 3 - 1 x 2 d x

Motorcross, Inc. identified the following selected transactions that occurred during 2016: a. Issued 850 shares of $5 par common stock for cash of $21,000. b. Issued 5,600 shares of $5 par common...

What is the difference between the concepts of absolute advantage and comparative advantage?

Convert the AON diagram below to an AOAdiagram. h

Use the Stenback Exercise Equipment data in Exercise E14-23. Prepare the companys statement of cash flows indirect method for the year ended December 31, 2016. Assume investments are purchased with...

Given the diagram below, find: (a) The critical path. (b) How long it will take to complete theproject. 7E1 0B 2

Consider sample data with x = 24 and s = 6. (a) Compute the coefficient of variation. (b) Compute a 75% Chebyshev interval around the sample mean

QUESTION 23 15 points Save Answer there is no rotation. A green car with mass 900 kg is travelling east at 40 m/s. Simultaneously, a yellow car with mass 1600 kg is travelling north at 30 m/s. They...

Energy Energy vs. position t = 1.940 s 8 4 N 0 >x (m) 20 40 60 80 100 120 140 160 180 200 Height (cm) 40 T 20 - Length (cm) 20 40 60 80 100 120 140 160 180 200 Play Pause > Reset g = 10m/s^2 In our...

M. D. Gordon, G. J. OBrien, C. J. Hensler, and K. Marcali [Plant/Oper. Prog., 1, 27 (1982)] utilized a mathematical model to assess the thermal hazard (explosion potential) associated with the...

PLEASE help I have attached all information required (stanjan code output) 1. Combustion processes can occur under different conditions. If the combustion process is a deflagration (flame), a...

[22] The following is a section of a system flowchart for a payroll application: Symbol X could represent A. Erroneous time cards. B. An error report. C. Batched time cards. D. Unclaimed payroll...

With the increasing demand for xylene in the petrochemical industry, the production of xylene from toluene disproportionation has gained attention in recent years (Ind. Eng. Chem. Res., 26, 1854...