Physics, 18.07.2019 23:20, Jakeandjenn21
The parallax angle for the red supergiant star betelgeuse has been measured using hipparcos to be 4.51 ± 0.80 mas (milliarcseconds). (g. m. harper et al 2017, aj, 154,11), a. find the distance to betelgeuse in units parsecs including uncertainty (which will be asymmetric, so you need to compute + and-uncertainties b. convert the optimal distance you computed in parsecs in part (a) into light-years; c. determine the distance modulus for betelgeuse (you may ignore uncertainty). separately) and round to the right number of significant figures. au. keep the correct number of significant figures. using clear english prose, explain why result makes sense (i certainly hope it d. betelgeuse has a mean v magnitude of m-0.45. what is its mean luminosity in solar luminosities? again, ignore uncertainty for now. hint: the sun's absolute vluminosity is~4.83
Answers: 1
Physics, 22.06.2019 09:30, gobbler80
On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s. t.p.?
Answers: 2
Physics, 22.06.2019 14:40, casie65
During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?
Answers: 1
The parallax angle for the red supergiant star betelgeuse has been measured using hipparcos to be 4....
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