1
answer
0
watching
74
views
6 Oct 2020
(a) The distance to Polaris, the North Star, is approximately 6.44×1018 m, If Polaris were to burn out today, how many years would it take to see it disapper.
(b) How long does it take a microwave signal to trave frome Earth to the Moon and back?
(The distance from Earth to the Moon is 3.84×105 km)
(a) The distance to Polaris, the North Star, is approximately 6.44×1018 m, If Polaris were to burn out today, how many years would it take to see it disapper.
(b) How long does it take a microwave signal to trave frome Earth to the Moon and back?
(The distance from Earth to the Moon is 3.84×105 km)
RodolfoLv5
29 Jan 2021
