collisions transfer energy
Q: A black body radiator in the The shape of a sphere has a surface area of 1.1 m². If the temperature…
A: Given data: Surface area (A) = 1.1 m2 Temperature (T) = 1015 K Black body radiator
Q: Satellites are typically powered by solar panels. Using the results of a Chp 2 homework problem,…
A: We are strictly following the data given in the question: Solar power per unit area = 1381.465…
Q: How many watts will be radiated from a spherical black body 25 cm in diameter at a temperature of…
A: Diameter, d = 25 cm Radius, r = d/2 = 12.5 cm = 0.125 m Temperature, T = 900° C Power, P = ?
Q: Shortwave radio is broad between 3.50 and 29.7MHz. To what range of wavelengths does this…
A: The wavelength corresponding to a frequency of 3.50MHz is
Q: A blackbody has a temperature of 2000°C. Determine the wavelength and frequency of its most intense…
A: Given: Temperature of blackbody T = 2000oC=2273K
Q: A black body measures 20cm by 15cm. If the temperature of the object is 2500K how much energy does…
A:
Q: Define solar constant. Explain a process which converts light energy into electricity.
A: Required : Solar constant and process to convert light energy into electricity.
Q: A perfect black body has its surface temperature 27 cº Determine : Maximum radiation wavelength?…
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Q: As the absolute temperature of a black body doubles what happens to the total energy emitted by the…
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Q: Human body temperature is about 310 K (3.10 x 102 K). At what wavelength (in nm) do humans radiate…
A: Using Wein's displacement law Where T = Temperature of an object = Wavelength of…
Q: Planetary Attribute Albedo Radius Gravitational acceleration Mean distance from sun Surface pressure…
A: (a) From the given data, solar radiation of earth is 1360 W/m2. The solar radiation is inversely…
Q: The Earth is spherical in shape and can be considered to be a perfect black body radiator at a…
A: Given Data Temperature is given as T=58°C=(58+273) K=331 K Radius of the Earth is R=6360 km=6360…
Q: Using the given charge-to-mass ratios for electrons and protons, and knowing the magnitudes of their…
A: The charge of electrons and protons are same, q The charge to mass ratio for electron is…
Q: An astronomer discovers a star that has a peak wavelength of 617 nm.
A: For frequency Speed = frequency × wavelength c = f× λ 3× 108 =f x 617 × 10-9 4.8× 1014 Hz = f
Q: 1. Temperature of the Cosmic Microwave Background radiation (CMB) is T= 2.725 K. a) Assuming it has…
A: (a) as we know max. Wavelength of radiation given by wein displacement law Lembda = b/ T where b is…
Q: A black body radiates energy at the rate of 1×105 J/(sm)2 at a temperature of 227°C. The temperature…
A: A
Q: Consider a black body of surface area 20.0 cm2and temperature 5000 K. a) How much power does it…
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Q: = At what wavelength does a room-temperature (T maximum thermal radiation? 20° C) object emit the
A: To study objects that emit thermal radiation we model them as a blackbody. A black body is a…
Q: Jupiter emits radio waves in several bands, the lowest frequency of which lies between 10 kHz and 1…
A: When electromagnetic waves are incident on a region of charged particles, they are able to penetrate…
Q: A blackbody radiator in the shape of a sphere has a surface area of 18 m2. If it has a temperature…
A: Given data: A blackbody radiator Emissivity (ε) = 1 Surface Area (A) = 18 m2 Temperature (T) = 2200…
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: The infrared radiation coming from the center of our galaxy has a wavelength of 2 µm. Using this…
A: The energy released by the core of a star is absorbed by its outer layers which then remits them.…
Q: A black body is at 727°C. It emits energy at a rate, which is proportional to ___________ a) (727)2…
A: Option
Q: Estimate the temperature that the surface of the sun would have to be in order to find equal…
A: Given: Equal population of neutral hydrogen atoms and protons at the surface To Find: Temperature of…
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: In the Sun's core, thermonuclear reactions produce the energy which eventually produces the Sun's…
A: Given: Tcore≈1.6×107Kρ=1.5×105 kg m-3σ=2.75×10-48 m2 Formula used: The approximate reaction = Total…
Q: An astronomer discovers a star that has a peak wavelength of 611 nm. Determine the peak frequency…
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Q: (A) Every square meter area facing the Sun, at the distance 1 AU from the Sun, receives radiant…
A: A) Given that:Prec=1.368 kW=1.368×103 WA=1 m2
Q: What will be the critical frequency
A: Critical frequency is a frequency above which a wave will not get reflected by ionosphere and will…
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: Scientists plan to place detection devices outside Earth's atmosphere to detect radiations from a…
A: Special cameras, because high energy UV rays are emitted by objects having very high mass
Q: The sun has a luminosity of 3.9 × 1026 W and an angular diameter of θ = 32 arc mins. Assume that the…
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Q: How big would a square solar sail need to be in order for sunlight to exert a 12 N force on it (use…
A: Given data: The force exerted by the sunlight is F = 12 N The intensity of the sunlight is I= 1100…
Q: Suppose YOUR body temperature averages 98.6 F. 1. How much radiant energy in Wm^-2 is emitted from…
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Q: What is the Vrms of hydrogen on the surface of the sun if its temperature is 5.44E3 degC? Number…
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Q: A neutral hydrogen atom has a single proton and a single electron. When separated by a distance of…
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Q: 80 Sun energy flux: 63 x 10 Wim at the Sun surface 1370 Wim solar constant reaching Earth 342 Wi…
A: Given:
Q: Using the given charge-to-mass ratios for electrons and protons, and knowing the magnitudes of their…
A: The charge of electrons and protons are same, q The charge to mass ratio for electron is…
Q: If the temperature of a black body is increased from 500k to 1000k , by what factor, the rate of…
A: The rate of emission of energy from a Blackbody denoted by j is given by Stefan-Boltzmann Law…
Q: In a not so far away solar system, the sun's intensity is 30 W/m2 for a planet located a distance R…
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Q: What is the energy (in Joules, J) and color associated with 532-nm light? Energy and Type of EM…
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Q: If a star gives off light at a peak wavelength of 6.80x10-7 m. What would be the temperature of this…
A: Given peak wavelength = 6.8×10-7m
Q: 3) How bright will Pluto appear in reflected or scattered sun-light (total Flux received in W/m² )…
A: The radius of pluto is .The radius of sun is .The albedo of Pluto is 0.60The surface temperature of…
Q: When stars like the Sun die, they lose their outer layers and expose their very hot cores. These…
A: Wien's displacement law states that the BLACK BODY RADIATION curve for different temperatures will…
- Auroras are caused by collisions between particles such as electrons released by the Sun, and atoms in a planet’s atmosphere. These collisions transfer energy to the atmospheric atoms causing them to emit specific colors (wavelengths) of light. On Earth, auroras occur in a layer of the atmosphere known as the ionosphere, 80 km to 400 km above the surface. If solar activity increases, the number of sunspots increases, and more particles are released by the Sun. If, on average, there were 150 sunspots in 2014, 5 in 2020, and 160 in 2023, which year(s) will have the most auroras, and which year(s) the least? Can you explain why?
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