kimynaiixo kimynaiixo

08-02-2024
Physics

Answered

Imagine that you are observing the light from a distant star that was located in a galaxy
100 million ly away from you. By analysis of the starlight received, you are able to
tell that the image we see is of a 10-million-year-old star. You are also able to predict
that the star will have a total lifetime of 50 million years, at which point it will end in a
catastrophic supernova.
a) How old does the star appear to be to us here on Earth?
b) How long will it be before we receive the light from the supernova event?
c) Has the supernova already occurred? If so, when did it occur?

Answer :

Other Questions

(33%) Problem 2: An electron has an initial velocity of 5.25 x 106 m/s in a uniform 2.2 x 105 N/C electric field. The field accelerates the electron in the dire

A regulation basketball has a 36 cm diameter and may be approximated as a thin spherical shell. How long will it take a basketball starting from rest to roll wi

Picture yourself in the castle of Helm’s Deep from the Lord of the Rings. You are on the top of the castle wall and are dropping rocks on assorted monsters that

Which of the following is correct when you consider the sound that a guitar string makes when it is plucked? Group of answer choices Plucking the string sets u

New York City Water Pollution (in parts per million) 50 years ago timeline

The numerical aperture (NA) is a measure of the light-gathering capability of a fiber. It is defined as the sine of the maximum external angle of the entrance r

f= -72.1 -53.0 x 10-6 C 91 Find the net force on 93. +105 x 10-6 C + 92 0.50 m 0.95 m -88.0 x 10-6 C 93 F₁ = force exerted on 93 by 91 F₂ = force exerted on 93

why is the skin car rate in Australia so high? the atmosphere above Australia has less ozone than the atmosphere above other parts of the world Ozone in the

f= 20.88 +18.1 x 10-6 C +91 Find the net force on 9₁. -11.2 x 10-6 C 92 0.280 m 0.350 m- F₂ = force exerted on q1 by 92 → F3 = force exerted on 9₁ by 93 F3 =

f= -31.35 +4.44 x 10-6 C +91 Find the net force on q₁. +7.28 x 10-6 C 92 0.100 m + 0.100 m- F₂ = force exerted on q₁ by q2 - F3 = force exerted on q₁ by 93 +2.