An anstonomer on a planet orbiting the star Deneb wants to differentiate the reflected light by Earth from the light of the Sun. First, consider the area of Earths disk which reflects the Sun's intercepted light. Second, consider the surface area of a sphere with the same radius as Earths orbit around the Sun. Take the ratio of these two areas. Assume the Earths radius is 6400.0 km and is 1.3 x108 km from the Sun.
Q: Suppose you send a probe to land on Mercury, and the probe transmits radio signals to earth at a…
A: λ-λ0λ0=vc λ0 is the actual wavelength λ is the observed wavelength
Q: at which you me you are sphe
A: Given: Temperature is 310 K
Q: If an object has been magnified 106 times and appears to be 10-4 m, what is the actual size of the…
A:
Q: The ionized calcium line in Sun's spectrum has a frequency of 7.526×10¹4 Hz. Find the frequency…
A: As per general relativity gravity affect the path of light. A gravitational source sends the space…
Q: The APOLLO 11 moon landing crew (for all you moon landing deniers out there) left a retro-reflecting…
A:
Q: Say you observe a light source which you know emits light with a wavelength of 650nm, but when you…
A: Given The wavelength emitted by the light source is λ = 650 nm. The wavelength of the object is λo =…
Q: Show that the radiation pressure that a plane EM wave exerts on a surface, a perpendicular…
A: To answer: Find expressions for the radiation pressure in (a) for the case of non-perpendicular…
Q: value of the mass
A:
Q: Radar is used to determine distances to various objects by measuring the round-trip time for an echo…
A: Given here radar is used to find the distance of various objects by using echo we have to answer the…
Q: can you explain the math after the (149709.34)1/2 where do you get the 386.92 answer? can you just…
A:
Q: An electromagnetic wave of frequency 1E12 Hz is emitted from the surface of the Earth toward a…
A: To calculate the frequeny , use doppler effect.Doopler effect states that the observed frequency of…
Q: What is the Doppler broadening in the 21 cm line in an interstellar gas cloud (100 K) composed of…
A:
Q: The news station I listen to is called “WTOP 103.5.” This means that they broadcast radio wave at a…
A: Frequency, f = 103.5 MHz = 103.5×106 HzSpeed of light, c = 3×108 m/sWavelength, λ = ?
Q: Astronomers have observed a small, massive object at the center of our Milky Way galaxy. A ring of…
A:
Q: BeamDiameter When the beam exits the laser, it is approximately 30 mm in diameter. Molecules begin…
A: The intensity of the beam is the amount of light passing through per unit area, and it is also…
Q: A small radio transmitter broadcasts in a 33 mile radius. If you drive along a straight line from a…
A: Transmitter at origin City to the north at (0,40) City to the east at (45,0) Slope is…
Q: What fraction of the light from the Sun is intercepted and reflected by the Earth? To get an upper…
A:
Q: Suppose you send a probe to land on Mercury, and the probe transmits radio signals to earth at a…
A:
Q: (A) Every square meter area facing the Sun, at the distance 1 AU from the Sun, receives radiant…
A:
Q: What is the wavelength of light if it's frequency is 1.00 s-1?
A:
Q: The radio station broadcasts at a frequency of 100 MHz. What is the wavelength of the radio waves it…
A: Frequency of the radio wave is f=100 MHz =100 MHz×106 Hz1 MHz =1.00×108 Hz. Speed of the radio…
Q: collisions transfer energy
A: The year with the most auroras would be 2014, and the year with the least auroras would be 2020.
Q: The APOLLO 11 moon landing crew (for all you moon landing deniers out there) left a retro-reflecting…
A:
Q: What is the wavelength of a radio wave from an FM station that broadcasts at a frequency of 95500000…
A: The given values are, f=95500000 Hzv=3.00×108 m/s
Q: The astronomer claims that the frequency, f, of a vibrating star depends on its radius R, density r…
A: Write the dimensional units of frequency (f), radius (R), density (r), that is the density per unit…
Q: Calculate the intensity of light along the light path from point a to point b to point c, if the…
A: Given, The power of the light source: P=60 W ab=5 m bc=3 m (We assume that the light source is…
Q: Compute the wavelength of the radio waves from the following stations. (a) an AM station operating…
A: The expression for the wavelength in terms of frequency is given as, λ=cf...............(1) Here, c…
Q: What will be the energy associated with a blue photon (in Joules), if the frequency of the blue…
A: Given f=650 THz 1THz= 1012 Hzh=6.63×10-34 Jsor h=4.14 ×10-15 eVs
Q: The Juno spacecraft arrived at Jupiter on July 4, 2016. Assuming the distance between the Earth and…
A: Given data: Distance d = 6.30×1011 m Speed v = 3×108 m/s
Q: In a not so far away solar system, the sun's intensity is 30 W/m2 for a planet located a distance R…
A:
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: You are an astronomer and are searching for planets in other stellar systems for which conditions on…
A: Given:A candidate star name = Tycho1601Size of Tycho1601 = size of sunSurface temperature of…
Q: What is the frequency (in Hertz) of blue light that has a wavelength of 433 nm? [Hint: Write your…
A:
Q: explain why astronomers call such an object a blackbody?
A: A blackbody is a hypothetical object that absorbs radiation in all frequency ranges and neither…
An anstonomer on a planet orbiting the star Deneb wants to differentiate the reflected light by Earth from the light of the Sun. First, consider the area of Earths disk which reflects the Sun's intercepted light. Second, consider the surface area of a sphere with the same radius as Earths orbit around the Sun. Take the ratio of these two areas. Assume the Earths radius is 6400.0 km and is 1.3 x108 km from the Sun.
Step by step
Solved in 2 steps with 2 images
- Consider a spiral galaxy that is moving directly away from Earth with a speed V = 3.040×105 m/s at its center, as shown in the figure. The galaxy is also rotating about its center, so that points in its spiral arms are moving with a speed v = 6.950×105 m/s relative to the center. A) If light with a frequency of 7.543×1014 Hz is emitted in both arms of the galaxy, what frequency is detected by astronomers observing the arm that is moving toward the Earth? (Measurements of this type are used to map out the speed of various regions in distant, rotating galaxies.) Express your answer using four significant figures. B) If light with a frequency of 7.543×1014 Hz is emitted in both arms of the galaxy, what frequency is detected by astronomers observing the arm that is moving away from Earth? Express your answer using four significant figures.What is the energy of light having a frequency of (8.61x10^14)? Answer to 3 significant figures in scientific notation. Unit is case sensitive. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: Answer X10 unitsHigh energy cosmic rays from space hit the nitrogen in the atmosphereand convert it from nitrogen (N14) into carbon (C14). This produces a steadyconcentration of C14 in the atmosphere once the decay rate of the C14 back intoN14 matches the conversion rate from the cosmic ray flux (which is assumedto be constant for reasons you can ask me about if you want).a) What kind of radiation (what kind of particle) does the C14 emit when it decays? Tellme how you know?b) The concentration of C14 in plants (and animals) comes into equilibrium with the atmosphere because living things use the ambient carbon to make their cellular structures.However, once a plant dies, it no longer consumes C14. The C14 starts to decay away—allowing us to calculate when the plant died because the C14/C12 ratio doesn’t match theatmosphere. If the half life of C14 is 5000 years, what is the age of a piece of charcoal froma site from the Clovis peoples of North America if the concentration of C14 is 15% of…
- Help me answer the given question ASAPCompute the wavelength of the radio waves from the following stations. (a) an AM station operating at a frequency of 780 kHzm(b) an FM station with a frequency of 96.9 MHzmCompute the wavelength of the radio waves from the following stations. (b) an FM station with a frequency of 96.5 MHz
- Remember the wave equation is v = lambda - f For electromagnetic waves traveling in a vacuum, they all travel at the speed of light c = 2.998 * 10 ^ 8 * m / s . An ultraviolet wave from the Sun traveling at the speed of light has a wavelength of 3 * 10 ^ - 8 * m . Calculate the frequency of this wave 8.85 * 10 ^ 15 * Hz; 2.33 * 10 ^ 13 * Hz; 9.99 * 10 ^ 13 * Hz; 9.99 * 10 ^ 15 * HzThe Planck time is the unique interval of time that can be built out of G, c, and h. Some physicists think that time intervals shorter than the Planck time have no meaning. Using G = 6.7 x 10-11 kg-1 m3 s-2, c = 3 x 108 m s-1, and h = 6.6 x 10-34 kg m2 s-1, calculate the Planck time, in units of 10-43 s.A He-Ne laser with wavelength 632.8 nm is fired from a great distance toward a neutron star with mass 4.5 x 1030 kg and radius 12 km. What is the wavelength of light received at the neutron star’s surface?
- The radio waves that travel through the air to our car/truck/home radios are just another type of light. Let's say that your favorite radio station is 87.9 on the FM dial. That means that those radio waves have a frequency of 87.9 MHz. (a) What are the wavelength of those radio waves? (b) How fast would these radio waves travel through water?A star is 38 Million Miles from the Earth. How many meters is this? Express the answer in power of ten Example.