subject
Physics, 14.07.2019 15:30 AceGravity

The distance to the andromeda galaxy is estimated at about 2 ´ 106 light years. a light year is the distance traveled by light in one year; if the speed of light is 3 ´ 108 m/s, about how far is it from our galaxy to andromeda? (1 year = 3.15 ´ 107 s)

ansver
Answers: 1

Another question on Physics

question
Physics, 21.06.2019 18:10
An insurance company wants to know if the average speed at which men drive cars is higher than that of women drivers. the company took a random sample of 27 cars driven by men on a highway and found the mean speed to be 72 miles per hour with a standard deviation of 2.2 miles per hour. another sample of 18 cars driven by women on the same highway gave a mean speed of 68 miles per hour with a standard deviation of 2.5 miles per hour. assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations.
Answers: 2
question
Physics, 21.06.2019 23:00
Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's
Answers: 2
question
Physics, 22.06.2019 02:30
Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat
Answers: 2
question
Physics, 22.06.2019 03:50
The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=0∘ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=30∘ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=45∘ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=60∘ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=90∘ with the plane of polarization?
Answers: 1
You know the right answer?
The distance to the andromeda galaxy is estimated at about 2 ´ 106 light years. a light year is the...
Questions
question
Mathematics, 06.02.2021 02:20
question
Mathematics, 06.02.2021 02:20
question
Mathematics, 06.02.2021 02:20
question
Mathematics, 06.02.2021 02:20
question
History, 06.02.2021 02:20
Questions on the website: 13722367