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- Pl:2: this was all information that was given to me. If need j would need to look it up online.Use Wien's Law to calculate the peak wavelength of light coming from the Sun. Assume T=5800 K for the surface temperature of the Sun. Wein's displacement law says that the blackbody temperature and peak wavelength multiplied together give a constant of 0.29 cm-K. (K is degrees Kelvin). Convert the wavelength from part A into a frequency. The product of wavelength and frequency for electromagnetic radiation is a constant, the speed of light (c), 3 x 10^10 cm/s.could you explain why we calculate dLrel (The angular momentum) of two mass elements not one? We calculate dLrel and than to find Lrel we integrate L from 0 to l/2. Why do that ? Couldnt we calculate dLrel of one mass element and than calculate L from 0 to l/2?
- The spectrum of a sun-like star is observed and a spectral absorption feature at wavelength λ = 590 nm is found to vary sinusoidally in wavelength with an amplitude ∆λ = ±1 × 10−4 nm and a period of 3 days. Assuming that this variation is due to the presence of an unseen orbiting planet, obtain an estimate for the minimum mass of the planet and express your answer in units of the Earth’s mass. State clearly any approximations or assumptions that are made when obtaining the estimate.The distance to a star is approximately 4.43 ✕ 1018 m. If this star were to burn out today, in how many years would we see it disappear? (b) How long does it take sunlight to reach Earth? in minutes(c) How long does it take for a microwave radar signal to travel from Earth to the Moon and back? (The distance from Earth to the Moon is 3.84 ✕ 105 km.)in secondsHome | bartleby ong that n245qhp7a?filename=Bord%2C%20Donald%20J. Ostdiek%2C%20 ich the on n the g orbit ies of rent ld be 434 osphere sity of an has eric eriod of How long al allowed × New tab of 562 5. In the Bohr model for hydrogen, the radius of the nth orbit can be shown to be »² times the radius of the first Bohr orbit = 0.05 nm (see Example 10.3). Similarly, the energy of an electron in the nth orbit is times its energy when in the - 1 orbit. What is the circumference of the n = 100 orbit? (This is the distance the electron has traveled after having revolved around the proton once.) For such large-n states, the orbital frequency is about equal to the frequency of the photon emitted in a transition from the nth level to an adjacent level with n + 1 or n - 1. Given this, find the frequency and corresponding period of the electron's orbit by computing the frequency associated with the transition 100 to n = 101. Using your values for the electron's orbital size (distance) and travel…
- Show that, if the ratio of the blackbody fluxes from a star at two different frequencies (i.e., a color) is measured, then, in principle, the surface temperature of the star can be derived, even if the star's solid angle on the sky is unknown (e.g., if it is too distant to be resolved, and its distance and surface area are both unknown).What is the idea behind the multipole expansion, and what does it accomplish?With proper explanation both plz ... Vll upvote.....
- (a) How long in seconds does it take a radio signal to travel 180 km from a transmitter to a receiving antenna? (b) We see a full Moon by reflected sunlight. How much earlier did the light that enters our eye leave the Sun? The Earth – Moon and Earth – Sun distances are 3.8x105 km and 1.5 × 108 km, respectively. (c) What is the round-trip travel time in seconds for light between Earth and a spaceship at a 6.8 × 107 km distance from Earth? (d) Suppose astronomers observe a supernova about 7300 light-years (ly) distant. How long ago in years did the explosion actually occur?Please show a complete, detailed solution for this problem. Thank you!Does a cylinder surface have "intrinsic' curvature? i.e if you stay on the cylindrical surface and make geometric measurement, will there be devia- tions from euclidean geometry?