If the total surface area of the human body is 1.48 m² and the surface temperature is 303 K, find the total rate of radiation of energy (W) from the body. Use e=1. Round your answer to 2 decimal places.
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Q: The equation for the power emitted by the human body is P=5.67 X 10^-8 AT^4 . If the area of the…
A: Area of human body , A = 3.5 m2 Temperature , T = 25 ° C = 298.15 K To find = power emitted
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Q: calculate how much radiation is emitted by the Sun and the Earth (assuming the Sun's average surface…
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Q: a=6πb/q√17 relating the variables a, b and q.
A: solutionGiven : a=6πbq17--1Given condition←'b' is held constant and 'q' is varied and 'a' is…
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A: Given data: Average usage of water heater = 3.2 hours/day Power (P) = 3.8 kW Cost of electricity =…
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- What volume (in m3) of natural gas would it take to generate 4.18 x 108 J of energy if the energy content of natural gas is 36.4 MJ/m3 [round your final answer to one decimal place]?Hemoglobin has a molecular mass of 64 500 u. Find the mass (in kg) of 598 molecules of hemoglobin. Number i Don't use Ai Units =One mole of Gold (Au) atom has a mass of 197 g. We know that the density of gold is 19.30 g/cm3 in room temperature. Using those numbers, answer the following questions: a) What is the mass of a single gold atom in kg? b) Assume that gold atoms sit in a perfect cubic crystal structure. Estimate the distance between two gold atoms in meters. c) If we have a gold cube of 6 cm on each side, how many atoms can we fit along the edge of each side of the cube? d) What would be the mass, in kilograms, of the gold cube we discussed in part (c) (measuring 6 cm on each side)?
- Question 1. The table below shows a collection of data for a thermocouple. Temperature is in degrees Celsius, and the Voltage is in millivolts. (a) Plot the graph using rectangular graph paper with Temperature as the independent variable and determine the basic functional relationship between Temperature and Voltage. Alternatively, you can use Microsoft Excel to plot the data, but attach the graph in your answer page. (b) Determine specific the equation, using the method of selected points that best fits the data. Show how you determined the equation. If you need help, review Lecture-5 (c) What is the thermocouple voltage when the temperature is 1225 degree Celsius? Temperature (degree Celsius) Voltage (millivolts) 50 100 150 200 300 400 500 600 700 800 900 1000 2.5 6.7 8.8 11.2 17 22.5 26 32.5 37.7 41 48 55.2The equation for the power emitted by the human body is . If the area of the human body is 3.5 m2, what is the power radiated by the human body when the temperature is 25 degrees celsius?How much heat Q would be needed to completely evaporate 37.5 g of boiling water at a temperature of 100 °C? Express the answer in units of joules. The latent heat of vaporization for water at 100 °C is 2260 J/g. Q =
- The following heat transfer formula quantifies the radiation emitted from the Sun: P = eoA(T4 – T?) Equation 5 where: P= radiated power (Watts) e = emissivity (=1 for ideal radiator; unitless) o = Stefan-Boltzmann constant = 5.67x10-8 W/m2-K+ A = radiating area (m²) T= temperature of radiator (Kelvin) Tc = temperature of surroundings (Kelvin) Q3 Using the following values, together with equation 5, calculate the power emitted by the Sun. sun's surface temperature = 5780 K temperature of the environment that the Sun is located in = 4 K emissivity of the Sun = 1 radius of the Sun = 695,700,000 m Stephen-Boltzmann constant o = 5.67 x 10-8 W/m2-K4 Show your work below-you may use the equation editor or insert a picture of your handwritten work.A fresh hot cup of coffee is 84°C and the room temperature is 20.3°C. After 5 minutes, the temperature of the coffee is 72.7°C. Solve for the constant of proportionality, k.S Can 6 PAR к Торс K Unit K In x K Moti = Cop K Unit S Spee S Topo S Math Micr eb.kamihq.com/web/viewer.html?source-filepicker&document_identifier=137VZR5BZOVSAIMOA55WU555_CvJ9NacO + 100 P e Interpreting Graphs Answer the questions following the graphs on each side Dietance va. Time 2 7 10 11 12 13 14 Time in soconds 1. From 1 second to 2 seconds, how fast is the object traveling. (Take the difference in distance and divide it by the time in between the 2 distances) 2. Is the object going as fast between 9 and 12 seconds as it is between 1 and 4 seconds? How can you tell? 3. What is the motion of the object between 4 and 6 seconds? acer
- A hot water heater in a residential home runs for an average of 3.7 hours per day with a heat energy input of 3.7 kW. What would be the annual cost for hot water in this home using an electric hot water heater if the cost of electricity is $0.19/kWh [round your final answer to zero decimal places]?Methanol ( density = 787 kg/m³) is used to cool an engine. If 0.03 m3 of coolant is used and the cooling process results in a change in internal energy of 912 kJ, what is the change in temperature of the coolant (deg C)? Report your answer to 2 decimal places.If mass of air in a house is 278.6376kg. And the specific heat of air is 1.0kj/kgK. How much heat energy is needed to heat air by 10K? Use Q=mc∆T