calculate the temperature of the gray surface k=0,2 W/m²CL = 5mToo =15°CR = 0,1mh = 5W/m²30°C

Answered: Image /qna-images/answer/44ef8526-bf72-4d22-846a-47bd70e8968e.jpg

Answered: k=0,2W/mC L = 5m Top = 15°C T R=0,1m…

Engineering

Mechanical Engineering

k=0,2W/mC L = 5m Top = 15°C T R=0,1m h=5W/m² 30°C

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: Problem C 1. Recreate the ORTHOGRAPHIC VIEWS as shown below. 2. Draw the HALF-SECTION VIEW in the…

A: Orthographic views:- These are the views of a 3D diagram representing as 2 dimensional views for…

Q: Derive the necessary condition for radiative equilibrium. ume the simplest geometry (plane parallel…

Q: Q. 1 A bullet is fired with initial velocity of 100 m/s from the hill at point P at an angle of 30°…

A: Hello. Since you have posted multiple questions , we will solve the first question for you. If you…

Q: For a glass plate transmissivity and reflectivity are specified as 0.86 and 0.08 respectively, the…

A: Given Data⇒ Glass Transmissivity ζ=0.86 Reflectivity ρ=0.08

Q: Block m, of mass 57 kg moving with velocity v= connected to block my by a long, massless spring with…

Q: 3. The two-dimensional velocity field v = (3t- 8xy)i+ 4(y – x')j satisfies the Euler's equation of…

Q: what are the main differences between the star and 3dB couple

A: A Star coupler is an electronic device that is used to change the input signal into multiple output…

Q: Compute the expected properties of modulus of elasticity (Ec) of a composite made from S-glass…

Q: The velocity of light in space is approximately186,000 mi/s. The velocity of light in units of…

A: Given: The velocity of light in space is V=186000 mi/s.

Q: 1. For an opaque surface, the absorptivity (a) , transmissivi (A) a + p= T B) a + p+T = 1 C) α +ρ- 1…

A: Given Data : Opaque surface

Q: What is regular precession?

A: It is evident that the forces of the central field acting on the moving body are reduced not only to…

Q: The view factor does not change when the radiometer is moved relative to the surface. Select one: O…

A: the view factor does not change when the radiometer is moved relative to the surface .

Q: The Sun supplies electromagnetic energy to Earth. It appears to have an effective temperature of…

A: Given data: The effective temperature of the sun, Ts = 5800 K The incident energy on the surface of…

Q: Draw the shear force and bending moment diagram for the beams shown below. 12 kN 2 kN/m mm AB DE

A: Given data: Beam with corresponding loading pattern as shown in figure To determine: SFD & BMD

Q: Explain difference between black body, white body and gray body. And discuss absorptivity,…

A: Black Body :- hypothetical body OR object with no reflecting power but a perfect absorber and…

Q: Can you answer part c of problem 1 in the image?

A: Given, The speed of ball at A, Va = 1.2 m/s mass of the ball, m = 1.5 kg The centripetal…

Q: It is desired that the reflectivity of light at normal incidence to the surface of a transparent…

Q: Could someone use this same problem but tell me how to find the total emissive power of the sheet at…

A: Given: Initial temperature of the sheet: →T1=1500 K Emissivity→ε=0.9 Boltzmann constant:…

Q: Define the term principal plane?

A: Whenever a point is subjected to stress, the differential volume enclosing that point has stress…

Q: Differentiate the following thermal and optical properties: a. Thermal conductivity vs. thermal…

A: Givenpart aThermal conductivity vs. thermal diffusivityPart bReflectance vs. transmittance

Q: Assuming that same 20wt% Cu alloy was then cooled slowly from 780 to 778 °C, determine the phase…

A: Given data: The weight percent of copper alloy is, CO = 20 wt.%. The temperature 778oC, is just…

Q: The driver in Figure 2 can command the speed with which the piston slides in the hydraulic cylin-…

A: The angular velocity of the bed = 0.001 rad/s

Q: A black surface will not receive and emit the maximum amount of energy. Select one: O a. False O b.…

A: According to kirchoff's law of thermal radiation whenever a body is in thermal equilibrium within…

Q: What is the emissivity (e) of a perfect radiator of heat? 0.5 10 0 1 -1

Q: SUPPOSE THE AMBIENT TEMPERATURE IS 20degrees CELSIUS, AND THE HOT RESERVOIR CONSISTS OF A SPHERICAL…

Q: -Z/Zo 3 The density of air as a function of altitude above sea level is modeled as p(z) = poe` where…

Q: Select the sectional view that will be produced by the cutting plane. k m

A: Given:

Q: GER SCALE 9 v 1.3- A 3"-2 ACME .75 1.5 "5 SECTION A-A Ø3.75- D-50 Top and front views of the…

A: Adjusting screw is a screw with threads from 40 to 100 threads per inch. Typically stainless steel…

Q: Two concentric spheres of diameter Dị = 0.8 m and D2 = 1.2 m are separated by an air space and have…

Q: a) What fraction of the radiation is from 0 to 4 micrometers? What would the fraction be from 4 to 6…

A: Given: The surface temperature Ts=300 K ε1=0.75, ε2=0.1, ε3=0.8

Q: Select the sectional view that will be produced by the cutting plane.

A: According to the details provided in the question, we need to SECTION VIEW. I am using solid works…

Q: ) For a long triangular groove shown in figure, calculate viewfactor F12 and F13. a 27 32 b

Q: Taking X as the lowest view point, sketch in the space provided, the isometric view of each object.

Q: Please refer to Figure 2. This time, the incident ray is coming in from water (n=1.33) rather than…

A: Given Data: The refractive index of water is nw = 1.33 The refractive index of glass is ng = 1.5…

Q: A 3-in-diameter cylindrical wire is coated in 3 inches of polyethylene insulation. The wire can be…

A: Given:D = 3 in = 0.0762 m (wire diameter)T1 = 300°C = 573 Kε1 = 0.85 (wire emissivity)T2 = 40°C =…

Q: Which of the following is the reflected ray for ray 3? a b c d

Q: Which line does in the top view represents surface(P)? Which line does in the right side view…

A: Dear student please rate me postive :) Stay safe stay happy ...! Answers-

Q: how do I draw half sectional view of this

Q: The parameter that measures how closely a surface approximates a blackbody is callled Reflectivity •…

A: Given that The parameter that measures how closely a surface approximates a blackbody is callled…

Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

calculate the temperature of the gray surface

k=0,2 W/m²C
L = 5m
Too =15°C
R = 0,1m
h = 5W/m²
30°C

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

750 750 100 (а) Figure 4.15 (b)
DRAW ISOMETRIC VIEW BASED ON THE ORTHOGRAPHIC VIEWS GIVEN. LABEL ISOMETRIC AND ORTHOGRAPHIC VIEWS PROPERLY. LABEL ALL VISIBLE SURFACES AND CORNERS IN ALL VIEWS. TOP EW
Earth absorbs solar energy and radiates infrared energy. The intensity of the solar radiation incident on earth is J = 1350 Wm-2, also known as the solar constant. Assume earth’s surface (ground) temperature to be uniform at Ts, and that the ground and atmosphere are black (emissivity = 1) for infrared radiation. The radius of the earth is 6.378 x 106 m. The diagram shows the ground at the surface temperature Ts and the atmosphere, represented as a thin black layer, at temperature Ta . Suppose the atmosphere absorbs 100% of the infrared radiation emitted by the ground. Assume that the ground absorbs 47.5% of the incident solar energy, and that the atmosphere absorbs 17.5% of the incident solar energy (for a total of 65% absorbed by the planet). Calculate the "steady state” numerical values of the earth’s ground temperature Ts and the atmospheric temperature Ta taking into account the “greenhouse effect” of atmospheric infrared absorption and emission described above.
...... GIVEN: FRONT AND LEFT SIDE VIEWS. SKETCH: AUXILIARY VIEW PROJECTED OFF THE FRONT VIEW. SHOW VISIBLE AND HIDDEN LINES. HOTE Surfaces H & J are Inclined. YHA
Is this true or false? thank you
You have a telescope that consists of two converging lenses which are placed a distance apart which is approximately equal to the sum of their focal lengths. Focal length 1 is appriximatly 5.5cm and focal length 2 is approximatly 25cm. The lens closest to the onject should have a resonably long focal length and the eyepiece lens should have a relatively short focal length to get good magnification. a. draw a scale ray diagram for a telescope using one long and one short focal length lens. b. Estimate how much larger your distance object appears through your telescope and then calculate the angular magnification.
question is image only part a
These images show one of the large `VLT’ telescopes at the European Southern Observatory’s facility at Cerro Paranal, Chile. The place where the laser beam comes out (seen in the inset photo) is just out of sight off of the top edge of the large photo. Also note that if you look down the telescope tube (in the main photo), you can see the tube’s front-end structure. Why is there a laser beam shooting out of the front of this telescope (in the inset picture)? Group of answer choices The beam creates an `artificial star’, which is used by an adaptive-optics system to measure (and counteract) the blurring effect of Earth’s atmosphere. The astronomers are bouncing light off of objects near the center of the Milky Way galaxy, to measure their distances from Earth. The astronomers are taking pictures of the surface of a planet (most likely Mars), and the laser allows them to light up the planet’s surface with a very specific color of light. The astronomers are engaged in the opening…
Calculate the absorbed irradiation by the surface in W/m2
4. The surface temperature of a planet is T, and the measured temperature is Tm (i.e. the temper- ature measured at the top-of-atmosphere based on the upwards flux Ft there). Assume radiative equilibrium. (a) Show that the infrared optical depth of the planet's surface 7 is related to the surface temperature T, and the measured temperature Tm by Calculate the infrared optical depth at the surfaces of (a) Earth, where T, = 300 K and Tm = 250 K. (b) Venus, where T, = 750 K and Tm = 230 K. (c) Mars, where T, = 240 K and T, = 220 K.
The tungsten filament of an incandescent light bulb has a temperature of approximately 3000 K. The emissivity of tungsten is approximately 1/3, and you may assume that it is independent of wavelength. To increase the efficiency of an incandescent bulb, would you want to raise or lower the temperature? (Some incandescent bulbs do attain slightly higher efficiency by using a different temperature.)
The speed of sound in air is 340 m/s, and the speed of light is 3.0 X 108 m/s. What frequency oflight has the same wavelength as a 200.0 Hz sound wave?