o: Fill in the blank with appropriate answer :1.viscosity of gases increases with temperature, whereas viscosity of liquid decreases withtemperature2.If heat energy is given to a substance and its temperature remains constant then thesubstance undergoes a change in_3. . determines the degree of hotness or coldness of a body.4 We use afor measuring the temperature of a body.5.The range of wavelength of visible light is

(1) The viscosity of the gases increases with an increase in temperature and the viscosity of the…

Answered: o: Fill in the blank with appropriate…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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6. What is the temperature of an object if the peak wavelength of its blackbody spectrum is 1200 micrometers? a. 2.4 K b. 25 K С. 322 К d. 833 K e. None of these CS Scanned with CamScanner
Please answer the questions about light and color: A. Is mixing colored light the same as mixing colored paint? Explain. B. White light is said to be mixture of all colors. Why did mixing red, green, and blue light result in white?
3. Dimensional analysis can provide insight into Stefan-Boltzmann's law for the radiation from a black body. According to this law the intensity of radiation, in units of J s-' m-², from a body at temperature Tis 1 = GT*, where e is Stefan-Boltzmann's constant. Because black-body radiation can be considered to be a gas of photons, i.e. quantum particles which move with velocity e with typical energies of the order of kT, the intensity I is a function of h, c and kT. Use dimensional analysis to confirm that Iis proportional to 7 and find the dependence of a on h and c.
In relation to incoming radiation, which surface would receive the most heat? a. the surface that is perpendicular to the radiation b. the surface that is parallel to the radiation c. the surface that is angled towards the radiation d. the surface that is angled away from the radiation
A monocrystalline silicon solar panel (active area: 1m2 )has an energy conversion efficiency of 20%. What is the power output when irradiance of 800 W/m2 is shining on the solar panel? a. 320 W. b. 80 W. c. 240 W. d. 160 W. e. 400 W.
2. a) At what wavelength is the peak in the thermal ("blackbody") spectrum of the Sun? What about for the Earth? Make sure you show how you got these numbers, and then b) Give a term for the part of the electromagnetic spectrum in which these peaks occur (e.g., x-ray, UV, Visible, IR, microwave, etc.). c) What is the total flux emitted in each case (in W m ²)?
2. A match will not spontaneously light until it is struck along the rough surface on the bottom of the match pack. Why? Construct a potential energy diagram with two curves, one for a normal match and one for a "strike anywhere" (does not need to be on a rough surface to light it) match. Clearly label each curve.
1. A carpenter builds an exterior house wall made of wood 3.0 cm thick. The wood has k = 0.080 W/mk. The interior temperature is 19°C and the exterior surface temperature is 9°C. What is the rate of heat flow per square meter through this wall? 2. What is the wavelength for the energy maximum of blackbody radiation at 30,000°F?
1. When the sun is directly overhead, the thermal energy incident upon the earth is about 1.4 × 106 ergs- cm-2-sec-¹. The diameter of the sun is about 1.6 × 10¹¹cm, and the distance from the sun to the earth is about 1.3 × 10¹3 cm. Assuming the that the sun radiates like a black body, use the expression I = σeT4 to estimate its surface temperature. 2. Integrate the expression 8πhc² 1 15 exphc/kXT –1 over all λ, and show that the temperature dependence of the result is T4. I(x) dx -dλ
8. A. What is the name of Instrument A below? Spectroscope Instrument A B. If you use this instrument to look at white light, what will you see? all the colors of the C. What is happening at the atomic level to cause each line below? (Be specific) D. The Ne emission spectrum is shown below. What is the difference between what you would observe when looking at a Ne light without and with instrument A? Ne 4000 5000 6000 7000
6. An object with a temperature of 5,000 K emits an electromagnetic (EM) flux of 50 nanowatt. Apply the blackbody radiation law to calculate approximate EM flux emitted by this body if its temperature is changed to 18,000 F.
4. The density of the most common polymorph of ice is 917 kg/m³. Use the Clausius-Clapeyron relation to explain why the slope of the phase boundary between water and ice is negative. b. How much pressure would you have to put on an ice cube to make it melt at -2° C? а.

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