What is the drag force on the sphere

Assignment Help Electrical Engineering
Reference no: EM13880301

Air at 25°C flows over a 10-mm-diameter sphere with a velocity of 25 m/s, while the surface of the sphere is maintained at 75°C

(a) What is the drag force on the sphere?

(b) What is the rate of heat transfer from the sphere?

(c) Generate a plot of the heat transfer from the sphere as a function of the air velocity for the range to 25 m/s. 

Reference no: EM13880301

Questions Cloud

Determine the maximum possible heat removal : Determine the maximum possible heat removal rate through the fin. What fin length would provide a close approximation to the heat rate found in part (a)? Hint: Refer to Example 3.9.
Evaluate public health strategies for addressing emerging : Evaluate public health strategies for addressing emerging and reemerging infectious diseases, including the role of organizations and agencies
How would bp''s operating choice change : How would BP's operating choice change if, because of wishful thinking, it (wrongly) believed that its lenient safety policy implied only a 2 percent disaster risk? Or if it believed that its expected disaster cost would be $5 billion (instead of ..
The fed''s recent action and its upcoming decisions : In the last Fed's Open Market Committee meeting, Fed decided not to increase the interest rate. However, the expectation is that the Fed will increase the interest rate by the end of this year.  Read at least three articles about this subject and pro..
What is the drag force on the sphere : Air at 25°C flows over a 10-mm-diameter sphere with a velocity of 25 m/s, while the surface of the sphere is maintained at 75°C (a) What is the drag force on the sphere?
Calculate national saving : Consider a small open economy with desired national saving of S = 20 + 200r* and desired investment of I = 30 - 200r*.a. Calculate national saving(S), investment(I), and the current account balance(NX or CA) in equilibrium when the real world interes..
Explain sanctions against foreign persons as presented : Explain Sanctions against Foreign Persons as presented in Executive Order EO 12938?
What is m1 in this simple economy : 1) You earn $500 a month, currently have $200 in currency, $100 in your checking account, $2,000 in your savings accounts, $3,000 worth of illiquid assets and $1,000 of debt.   a) How much money (M1) do you have?
Performance of health systems and population health status : How has that program evolved and influenced the entire U.S. health care system and what are some of the accomplishments and challenges for that program?

Reviews

Write a Review

Electrical Engineering Questions & Answers

  Find the attenuation constant alpha and phase constant beta

Find the attenuation constant alpha, the phase constant beta, and the phase velocity u if the conductivity of the material sigma=(omega)(epsilon), the material parameters are Ur=1, epsilon r =2.5, and the wavelength in free space is lamda naught =..

  Find the lumped element values of the open-circuited line

An open-circuited 50 Ω microstrip transmission line is used ina microwave amplifier circuit to provide a capacitance of 3.2 pF at2.3 GHz. (a) Find the appropriate electrical length of the line

  Sketch a layout that matches two capacitors of unit size

sketch a layout that matches two capacitors of unit size 8 and 3.75.The key is to match the perimeter-area ratio.Assume the unit capacitors are sized 4um*4um. Make sure to give the non-unit capacitor dimensions.

  Determine what is the ac machine efficiency

Suppose that the machining operation requires 1 kW, that the tool machine ihas 90 percent efficiency, and that the supply current is 14 A rms with a power factor of 0.8. Find the AC machine efficiency.

  What are differences between volatile and nonvolatile memory

What are the differences between volatile and nonvolatile memory What are advantages and disadvantages of volatile and nonvolatile memories

  Design a circuit with one output f and four inputs

Design a circuit with one output f and four inputs x1, x0, y1, andy0. Let X = x1x0 be a 2 digit binary number. X can have fourpossible valuations (X=x1x0), namely, 0 = 00, 1 =01, 2 =10, and 3 =11.

  Calculate the reluctance of the magnetic circuit

A ‘c-core' inductor has a total air-gap length of 3 mm and a cross-sectional area of 100 cm2. Two coils are wound on the core - one of 500-turns and another of 250-turns. Assuming the iron reluctance, fringing flux and leakage flux to be negligibl..

  How the switch circuit was run underground in pvc

Your office has emailed you a service request from one of your regular customers. The office has included all the information it had recieved from the homeowner. it seems they recently planted new shrubs in their yard.

  What is the induced voltage is the speed is increased

A 4 pole 50 kW dc machine has a value of Ea = 110 V at 1100 rpm. What is the induced voltage is the speed is increased 20%. Note: omega(w) = (2f*n)/60 where omega is in rad/sec, and n is in rpm

  Why the c0 and c1 probabilities of a pi may not be equal

Explain why the C0 and C1 probabilities of a PI may not be equal to 0.5. Give an example of a circuit or application where this could occur.

  Find the magnetic field produced by the two filaments

Two strands of infinitely long current rights carry currents of equal magnitude. Find the magnetic field produced by the two filaments at the midpoint between the two strands. Compare this result if the currents: a) have the same direction

  Write a function charges that computes the total charge

Write a function 'charges' that computes the total charge for a customer based on the GB of data the user uses per month. The function should also calculate the average cost per MByte of data (rounded to the nearest cent).

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd