Physics, 20.08.2019 22:30 noahmartinez3636
The surface area of a sphere (any sphere) is 4 steradians. this means that the celestial sphere covers 41253 square degrees (3602/t) of the sky. the hudf image is a square of side length 2.4 arc-minutes, and 10,000 galaxies are estimated within the image. assuming the cosmological principle, how many billions of galaxies are there in the known universe?
Answers: 1
Physics, 22.06.2019 06:30
The energy of a photon was found to be 3.38 Ă 10â19 j. planckâs constant is 6.63 Ă 10â34 j ⢠s. which color of light corresponds to this photon?
Answers: 2
Physics, 22.06.2019 12:50
Which changes would result in a decrease in the gravitational force btween two objects? check all that apply
Answers: 1
Physics, 23.06.2019 01:30
When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic cell in which solid lead(ii) sulfate is reduced to lead at the cathode and oxidized to solid lead(ii) oxide at the anode. suppose a current of is fed into a car battery for seconds. calculate the mass of lead deposited on the cathode of the battery.
Answers: 3
The surface area of a sphere (any sphere) is 4 steradians. this means that the celestial sphere cove...
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