2 years ago

Hi..I'm new here..Can some one help mi with my school work plz

Physics

1 answer:

kirill [66]2 years ago

3 0

Answer:

sure if its easy im jp ill help u

Explanation:

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balandron [24]

Answer:

a. 45 N. / b. 0.08 m/s^2. / c. 102 N

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If the distance of a galaxy is 2,000 Mpc, how many years back into the past are we looking when we observe this galaxy

ruslelena [56]

The age of the galaxy when we look back is 13.97 billion years.

The given parameters:

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where;

H₀ = 70 km/s/Mpc

$T = \frac{x}{V} \\\\T = \frac{x}{xH_0} \\\\T = \frac{1}{H_0} \\\\T = \frac{1}{70 \ km/s/Mpc} \\\\T = \frac{1 \ sec}{70 \times 3.24 \times 10^{-20} } \\\\T = 4.41 \times 10^{17} \ sec\\\\T = \frac{4.41 \times 10^{17} \ sec\ \times \ years}{3600 \ s \ \times\ 24\ h\ \times \ 365.25 \ days} \\\\T = 1.397 \times 10^{10} \ years\\\\T = 13.97 \ billion \ years$

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Learn more about Hubble's law here: brainly.com/question/19819028

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2 years ago

Hi..I'm new here..Can some one help mi with my school work plz​

Hi..I'm new here..Can some one help mi with my school work plz