There are two stars that behave like an ideal object. They emit the same total energy every second. The colder has a surface temperature T and 2.5 times the diameter of the hotter star. What is the temperature of the hot star in T?
Q: For a natural gas air flame, calculate the relative intensity of the 589.6nm emission line for…
A:
Q: Evaluate the intensity of solar radiation for 27 August 2020, given solar constant (Isc) =1800 W/m2.
A:
Q: Liquid helium is stored at its boiling-point temperature of 4.2 K in a spherical container (r = 0.30…
A:
Q: If the temperature decreases by a factor of 2, how much will the energy decrease? We have two…
A: Solution:Given:n = by this factor temperature decreases = 2 Told = old termperature = n x Tnew Tnew…
Q: Q¹: Consider the Debye frequency of sodium is (3.3 x 10¹2 Hz). Calculate the specific heat of sodium…
A: Introduction Debye frequency : The Debye frequency is the angular frequency at which the…
Q: The amount of radiant energy emitted by a surface is given by q = ɛ0 AT+ where q represents the rate…
A: Dimensional Analysis Dimensional Analysis is a method of studying the dimensions of complex physical…
Q: Assume an object is emitting blackbody radiation. If the Kelvin temperature of an object is doubled,…
A:
Q: Homework 6 Problem 3: The core of the Sun has a temperature of 1.5 × 107 K, while the surface of…
A: Answers for each sub questions are in each steps.Explanation:Step 1: Step 2: Step 3:
Q: Consider a surface at a uniform temperature of 800 K. Determine the maximum rate of thermal…
A:
Q: If a blackbody is radiating at T=1330 K at what wavelength is the maximum intensity?
A: According to Wien's displacement law the black body radiation curve for different temperatures peaks…
Q: Proxima Centauri, the nearest star to our sun, has a surface temperature of 3040 K. Find (a) the…
A: A perfect black body absorbs all the radiation incidents on it whereas a white body reflects all the…
Q: What is the vrms of hydrogen on the surface of the sun if its temperature is 5.36E3 degC? What is…
A: given that,M=1 gmol=10-3 kgmolT=5360 °C =5633 KR=8.314 Jmol K
Q: Estimate the total thermal energy of the Sun from the fact that its internal temperature is of order…
A: The virial theorem relates the total kinetic energy of a self-gravitating body to its gravitational…
Q: Suppose you have a sphere with a surface area of about 1.3 m2. If the temperature of the sphere were…
A:
Q: A certain furnace (essentially a blackbody) emits 300 W of power when operating at a temperature of…
A: Given data The power emitted by the furnace is given as P1 = 300 W. The initial temperature of the…
Q: A star has a surface temperature of 6400 K. The intensity of a sunspot is found to be 1/3 the…
A: The expression for the intensity can be written as I=σT4…
Q: A star has a power output of 2.5 x 1026 W and a radius of 8.92 x 108 m. Calculate the surface…
A: A black body is an ideal body that is capable of absorbing all the radiation that falls on it. For…
Q: The planet Venus is different from the earth in several respects. First, it is only 70% as far from…
A: To determine: Surface temperature.
Q: Assume the overall world energy consumption is 650 EJ. Now assume that you transfer all this energy…
A:
Q: Explain two assumptions behind the Kelvin-Helmholtz timescale
A:
Q: What is the lowest temperature that will cause a blackbody to emit radiation that peaks in the…
A:
Q: Calculate the amount of radiation emitted for a unit surface (1 m2) for a white ball at 53°C and…
A: Given data, Surface Area (A)=1 m2 Temperature (T)=530C Emissivity (ε)=0.12
Q: What is the Vrms of hydrogen on the surface of the sun if its temperature is 5.44E3 degC? Number…
A:
Q: Consider an insulated container containing 2.56-kg ice at -11°c. Inside the container, there is a…
A: mass of ice = 2.56 kg initial temperature of ice = -11oC radius of spherical object (r)= 0.36 m…
Q: 2.a. What is the total Power emitted (in the form of electromagnetic radiation) by a solid…
A: emissivity e = 1 radius r =0.70 mtemperature T = 1280 Kstefans constant σ = 5.67 x 10-8
There are two stars that behave like an ideal object. They emit the same total energy every second. The colder has a surface temperature T and 2.5 times the diameter of the hotter star. What is the temperature of the hot star in T?
Step by step
Solved in 2 steps
- Our sun, currently a yellow dwarf, will eventually evolve to a red giant star and then to a white dwarf star as shown in the figure. Assume that the sun radiates like a blackbody. Calculate the power radiated by the RED GIANT sun if its surface temperature is 3000 K.The sun can be modeled as a blackbody emitting at a temperature of 5800.0 Kelvin. Determine the following: a) The blackbody emissive power of the sun. b) The fraction of the sun’s emission in the visible range (0.40μm – 0.70μm).What is the vrms of hydrogen on the surface of the sun if its temperature is 5.36E3 degC? What is the vrms of hydrogen on the surface of the earth if its temperature is 21.2 degC?
- A window has heavy curtains in front of it. At night the curtains are closed to minimise heat loss. During the day the curtains are pulled aside exposing the glass window. How much heat is lost through the 1.0 m x 1.0 m square glass window pane that is 4mm thick when the inside temperature is 20 degree C and the outside temperature is -6 C (negative 6.0) in 12 hrs? ( 1m = 100 cm) (1m = 1000mm) %3DThe next four questions use this description. Our Sun has a peak emission wavelength of about 500 nm and a radius of about 700,000 km. Your dark-adapted eye has a pupil diameter of about 7 mm and can detect light intensity down to about 1.5 x 10-11 W/m2. Assume the emissivity of the Sun is equal to 1. First, given these numbers, what is the surface temperature of the Sun in Kelvin to 3 significant digits? What is the power output of the Sun in moles of watts? (in other words, take the number of watts and divide it by Avogadro's number) Assuming that all of the Sun's power is given off as 500 nm photons*, how many photons are given off by the Sun every second? Report your answer to the nearest power of 10 (e.g. if you got 7 x 1024, give your answer as 25).A certain furnace (essentially a blackbody) emits 300 W of power when operating at a temperature of 1 Kelvin. How much power will this furnace emit when the temperature is increase to 4 Kelvin?
- Please asapYou have a 5.3 inch diameter sphere heated to 335.0°F, which is inside of a large room with a surrounding temperature of Tsurr = 71.0°F. Treating the sphere as a blackbody, calculate the net heat transfer rate due to radiation between the sphere and its surrounds, in units of BTU/hr. The Stephan-Boltzmann Constant in English units is: σ = 1.714*10-9 BTU/(hr-ft2-°R4).