You use an IR-thermometer that uses an assumed emissivity value of 0.95. What temperature will it show if a rooms ambient temperature is 20°C and you measure a surface temperature of 80°C and the true emissivity value is: a) 0.98 b) 0.92 c) 0.15

You use an IR-thermometer that uses an assumed emissivity value of 0.95. What temperature will it show if a rooms ambient temperature is 20°C and you measure a surface temperature of 80°C and the true emissivity value is: a) 0.98 b) 0.92 c) 0.15

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: a) Evaluate the surface area of a paraboloid :=4-2-y that lies above the ry-plane.

A: Given that To evaluate the surface area of paraboloid z= 4- x2 - y2 that lies above the XY plane

Q: Find F12 and F21 for the following objects. a) Figure a shows a sphere placed inside a cube. The…

Q: 3. During tug of war, the bicep muscle generated 4k N force that was perpendicular to the forearm…

Q: A small spherical ball having diameter of d= 20 cm and at temperature of 150 °C is placed in a water…

Q: All perfect gases have the same density at 25°C and 1 bar. a) True b) False

A: The given statement is FALSE.

Q: Convert the following into S.I. units, show complete solution, Do not use conversion table in…

Q: 5- If we want to reduce the illumination to half we must do the below: a-rotate the angle of light…

A: Given questions: 5. If we want to reduce the illumination to half we must do the below:a - rotate…

Q: Thế équipment room housing the compressor and condenser of a refrigerant ammonia system has…

A: A refrigerant is a working fluid or working substance used to extract heat from the storage space.…

Q: A house has two rooms. One is much larger than the other such that the wall area is twice the size…

A: Rate of heat transfer is inversely proportional to the thickness of the wall. Thicker the insulation…

Q: In a certain locality the drybulb temperature is 35 C & the relative humidity is 70 %. At normal…

A: Given question is

Q: 1) Fill in the unknown properties for the materials given below. PLEASE EXPLAIN THE CALCULATIONS YOU…

A: Solution, Water All the values can be obtained using steam tables of water. To define a state only…

Q: t2 and b)p2 c)internal Heat and d)work

A: Given: p1=95.3+14.7 psia=15480 lb/ft2V1=0.6 ft3V2=3.6 ft3Cp=0.124 Btu/lbRCv=0.093 Btu/lbR To…

Q: Choose the wrong statement. Convective heat transfer depends on A) none of the above…

A: Convection: Convection is a mode of heat transfer that takes between the solid body and the…

Q: XIV- NTC and PTC are where the first with negative and second one with positive coefficient. a)…

A: Problem is based on basic electrical and can be solved as

Q: 2. Both a gage and manometer are connected to a gas tank to measure its pressure. If the reading on…

Q: 1.5) Fill in the blanks: A body whose surface properties are independent of wavelength is said to be…

Q: For a given element in a circuit, current through it was measured to be a constant 4.0 A. If the…

Q: of Stanton numb- dtl númber (Pr) is Re) /Pr, b) St = Re ow heat exchange

A: introduction: here we solve only first three question:

Q: A spherical balloon has a diameter of 9 m and contains Helium gas at a temperature of 38 °C and a…

A: Diameter of balloon, d = 9 m Temperature of Helium gas, T = 38 C = 38 + 273 = 311 K Pressure of…

Q: An 1.000 L aluminum pot is filled to the brim with water and heated from 10.0°C to the boiling point…

A: Solution:

Q: d) D Roller Support Cable Support 20N 3N 50N

Q: 8. All the energy relations satisfy the mathematical condition in thermodynamics. a) True b) False

A: GIVEN DATA - A TRUE/FALSE QUESTION GIVEN WE HAVE TO SELECT CORRECT CHOICE

Q: e a planet rises, and cool material sinks towards the center. nergy throughout the Earth's core.…

A: 1 correct answer is options c In conversation medium is required for the heat transfer

Q: Which temperature measurement device is mostly used in industry? A) Gas thermometry B) Thermocouples…

A: Thermocouples are a device consisting of two different electric conductors that form an electric…

Q: A spherical neutrophil 16µm in diameter is resting as shown in the attached photo. The pressure…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: UPVOTE WILL BE GIVEN. ANSWERS ARE GIVEN ALREADY. PLEASE WRITE THE COMPLETE SOLUTIONS. A room…

A: In the atmospheric pressure a chart with the help of which the physical and the thermal properties…

Q: Given a1000ft2 space with lighting wattage at 2 watts per ft2 and 80% of the the heat goes into the…

A: Space area (A) =1000 ft2lighting wattage at 2 watts per ft2 and80% of the the heat goes into the…

Q: What does this graph saw about ice melting at zero degrees Celsius?

A: In general, heat transfer is a thermodynamic process where heat transfers from the high-temperature…

Q: In a certain locality the drybulb temperature is 35 C & the relative humidity is 70 %. At normal…

Q: Which of the following should be used to measure very high temperatures? A) Termistor B) Peltier…

A: The temperature measuring range of the thermistor is -55°C to +114°C. Peltier is used to measure low…

Q: 700 600 500 400 S 300 200 100 0.05 0.1 0.15 0.2 e S (MPa)

A: In the given curve the ordinate represents stress and abscissa represents strain. Taking two value…

Q: please solve these question carefully , please make sure its correct , i just want final answer of…

A: For question 17 the correct option is D

Q: The mechanical characteristic shown at right is: a) stiff b) absolutely stiff c) mellow d) other

A: This question is based on the concept of Mechanical characteristic.

Q: What is the definition of the term "adiabatic process?" A manual pump is used to lift water out of a…

Q: I know that my answer b. was correct. But for future references, how do I know for sure the Psig…

A: In a pneumatic control system, Position of the valve shaft or stem will be compared with position of…

Q: 5) A particle is dropped from a height of 100 m. Determine the time required for the particle to…

A: The height is The acceleration when there is air resistance is

Q: Q2) Suppose two measured quantities x-(2.0=0.2) cm, y-(6.0=0.6) cm. Find z-x-y and its uncertainty…

Q: a)P2, b)delta H, c)delta U,

A: As per our company guidelines we are supposed to answer only first 3 sub parts in case of multiple…

Q: Knowing that tanks exposed into the atmosphere have pressure of atm. What is the design pressure?…

A: The tank design on basis of pressure can be done by three ways: Atmospheric pressure design Full…

Q: The pressure enclosed by the piston-cylinder system is P1, the atmospheric pressure is given by…

Q: Barometer pressure: 1 Atmosphere Dewpoint temperature: 15 C Drybulb temperature : 30 C Determine the…

A: Given data: Barometer Pressure = 1 atm Dewpoint Temperature = 15°C Dry bulb Temperature = 30°C…

Q: Q22 111 Poor power factor results in: a) Higher energy losses b) Higher load current c) Both a & b…

A: Option ( C ) is correct Both a & b

Q: 19. Convert the following pressure readings to kPaa assuming that the barometer reads 760 mm Hg. a)…

Concept explainers

Slope and Deflection

The slope in a deflected beam is described as an angle in radians made by the tangent of the section with the original axis of the beam. The deflection at any point on the axis of the beam is defined as the lateral displacement of the point before and after loading.

Question

You use an IR-thermometer that uses an
assumed emissivity value of 0.95. What
temperature will it show if a rooms ambient
temperature is 20°C and you measure a
surface temperature of 80°C and the true
emissivity value is:
a) 0.98
b) 0.92
c) 0.15

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 by step

Solved in 2 steps with 1 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

The expected value of the voltage across a resistor is 10V. However,measurement yields a value of 8.0 V. Calculate: a)Absolute error b)%error c)% accuracy
In an auto repair service, a hydraulic platform raises a 1800kg car 1.6m. The hydraulic pump maintains constant pressure of 950kPa in its piston. How much volume should the pump displace to deliver that amount of work? O A) close to 30L O B) close to 50L C) close to 55L D) close to 4OL O E) cdlose to 35L F) close to 45L
0:YV Homework 1.pdf > 1. Convert the following: a) 120 g mol ol NaCl to g. b) 120 g of NaCI to g mol. c) 120 lb mol of NaCl to lb. d) 120 lh of NaCl to Ih mol 2. Convert 39.8 kg of NaCl per 100 kg of water to kg mol of NaCl per kg mol of water. 3. How many Ib mol of NaNO, are there in 100 lb? 4. The density of a material is 2 kg/m'. What is its specific volume? 5. An empty 10 gal tank weighs 4.5 Ib. What is the total weight of the tank plus the water when it is filled with 5 gal of water? 6. If you add 50 g of sugar to 500 ml of water, how do you calculate the density of the sugar solution? 7. For ethanol, a handbook gives: sp. gr. 60°F = 0.79389. What is the density of ethanol at 60 F? 8. The specific gravity of steel is 7.9. What is the volume in cubic feet of a steel ingot weighing 4000 Ib? 9. The specific gravity of a solution is 0.80 at 70°F. How many cubic feet will he occupied hy 10X0 Ih of the solution at 70'F? 10. A solution in water contains I.704 kg of HNOkg H;0, and the…
It is common to place an evaporator in a position a) close to the ground b) near the ceiling The humidity present in the air is related to this type of energy. b) latent heat a) sensible heat c) potential energy
5
Pressurized eyes Our eyes need a certain amount of internal pressure in order to work properly, with the normal range being between 10 and 20 mm of mercury. The pressure is determined by a balance between the fluid entering and leaving the eye. If the pressure is above the normal level, damage may occur to the optic nerve where it leaves the eye, leading to a loss of the visual field termed glaucoma. Measurement of the pressure within the eye can be done by several different noninvasive types of instruments, all of which measure the slight deformation of the eyeball when a force is put on it. Some methods use a physical probe that makes contact with the front of the eye, applies a known force, and measures the deformation. One non-contact method uses a calibrated “puff” of air that is blown against the eye. The stagnation pressure resulting from the air blowing against the eyeball causes a slight deformation, the magnitude of which is correlated with the pressure within the eyeball.…
9. In Figure (1), if på – Pa = 80 kPa, the value of H is: Meriam red oil, 18 cm Sig.= 0.827 А) 8.8 ст В) 12.5 ст C) 15.6 ст D) None of the above Water Mercury A s.g.=13.6 35 cm В Figure 1 Manometer
Help with the questions: 1- Continuity tells us that whatever the volume of fluid in a pipe passing a particular point per second, the same volume must pass every other point in a second. The fluid is not accumulating or vanishing along the way. A) True B) False 2- When a fluid moves from a wider area of a pipe to a narrower one, its speed increases. A) True B) False 3- A fluid exerts a net upward force on any object it surrounds, called the buoyant force. A) True B) False
ANSWER LETTER B AND D show solutions, for checking
In a steam boiler with a volume of 2 m3, there is wet water vapor at 200 kPa pressure. Since it is known that 20% of the volume of the boiler is water and 80% is steam,a) The temperature of the wet water vaporb) degree of drynessc) Specific volume
Using the SEER calculation, how much money would you spend to run your air conditioning system if it cost $.10 per Kw during the cooling season? 3 TON, 14 SEER unit. Remember the unit will run for about 976 hours during this season. O $390.80 $450.30 O$250.97 $100.00