Physics, 19.09.2019 01:00 tatielder4896

How much more light can be gathered by a telescope that is 8 m in diameter than by your fully dark-adapted eye at 7 mm?

Answers: 2

Show answers

Answers

Answer from: SamaraP

1.32 million times more

Explanation:

The amount of light gathered by the telescope and by the eye is proportional to their area, so we have to calculate the area of each and then compare them.

The telescope has a diameter of 8 m, so its radius is r = 4 m, and its area is

$A_t=\pi r^2 = \pi \cdot 4^2 = 50.3 m^2$

The eye has a diameter of 7 mm, so its radius is r = 3.5 mm = 0.0035 m, and its area is

$A_e = \pi r^2 = \pi \cdot (0.0035)^2=3.8\cdot 10^{-5} m^2$

So we can now compare the two areas:

$\frac{A_t}{A_e}=\frac{50.3}{3.8\cdot 10^{-5}}=1.32\cdot 10^6$

So, the telescope can gather approximately 1.32 million times the light gathered by the eye.

Answer from: Quest

Wavelength = pie*69+69 with ur mom

Answer from: Quest

us open us open live us open live stream us open live streaming us open live online us open live golf us open live coverage us open live feed us open live leaderboard us open live golf us open live 2018 us open live streaming fox sports us open live streaming watch free us open 2018 us open 2018 live us open 2018 live stream us open 2018 live streaming us open 2018 live online us open 2018 live golf us open 2018 live coverage us open 2018 live feed us open 2018 live leaderboard us open 2018 live golf us open 2018 live us open 2018 live streaming fox sports us open 2018 live streaming watch free us open odds us open golf us open golf 2018 us open golf 2018 odds us open golf 2018 leaderboard us open golf 2018 tickets us open golf 2018 tee times us open golf 2018 prize money us open golf 2018 tv schedule us open golf 2018 dates us open golf 2018 live streaming us open golf 2018 live us open golf 2018 live coverage us open golf 2018 live stream us open golf 2018 live leaderboard us open golf 2018 live scores us open golf 2018 live feed us open golf qualifying us open golf tournament us open golf live us open golf live tickets us open golf tv schedule us open golf odds us open odds 2018 us open golf us open golf us open tickets us open golf 2018 schedule us open 2018 us open 2018 golf us open 2018 golf us open 2018 dates us open 2018 schedule us open 2018 prize money us open 2018 odds us open 2018 results us open 2018 leaderboard us open 2018 tickets us open 2018 live us open 2018 live stream us open 2018 live streaming us open 2018 live online us open 2018 live golf us open 2018 live scores us open 2018 live leaderboard us open 2018 live coverage us open 2018 live free golf us open 2018 live usga us open 2018 live coverage watch us open 2018 watch us open 2018 online for free watch us open 2018 golf watch us open 2018 golf watch us open 2018 online watch us open 2018 live watch us open 2018 live stream watch us open 2018 live online watch us open 2018 live golf watch us open 2018 live golf watch us open 2018 live online free watch the watch us open 2018 live watch us open golf 2018 live watch us open watch us open live watch us open live stream watch us open live online watch us open live golf watch us open live on internet watch us open live golf watch us open live 2018 watch us open live espn watch us open live coverage watch us open live fox watch us open live online free watch us open live golf free watch us open golf watch us open golf on internet watch us open golf live online free watch us open golf live on fox sports watch us open golf free watch us open golf online free watch us open golf live free watch us open golf 2018 live golf watch us open golf live watch us open golf 2018 online free watch us open golf live watch us open golf 2018 live watch us open golf 2018 watch us open golf 2018 watch us open online free watch us open fox watch us open free us open championship us open championship golf channel us open championship 2018 us open championship winners us open championship leaderboard us open championship live us open championship live stream us open championship live streaming us open championship live coverage us open championship 2018 us open championship 2018 live us open championship 2018 live streaming us open championship 2018 golf watch us open championship watch us open championship live watch us open championship live streaming watch us open championship 2018 watch us open championship 2018 live watch us open championship live streaming watch us open championship online watch us open championship live golf watch us open championship 2018 golf watch us open championship 2018 live coverage

Another question on Physics

Physics, 22.06.2019 08:00

Which graph represents motion with an object with positive velocity that is located at a position of 3 meters at a time of 0 seconds? a) a b) bb eliminate c) c d) d

Answers: 1

Answer

Physics, 22.06.2019 09:30

Asap i'm in class rn a 1,000-kg car is traveling 20 m/s on a flat stretch of road. it gets to a hill and coasts uphill until it stops. how high up the hill does the car travel? givens: equation: 1/2mv2initial=mghfinal solve for h. plug & chug, label.

Answers: 2

Answer

Physics, 22.06.2019 16:00

What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.

Answers: 3

Answer

Physics, 22.06.2019 17:20

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.

Answers: 1

Answer

You know the right answer?

How much more light can be gathered by a telescope that is 8 m in diameter than by your fully dark-a...