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3 years ago

How many years is a light year

Physics

2 answers:

n200080 [17]3 years ago

6 0

10,108 earth years equals 1 light year

Sholpan [36]3 years ago

5 0

A "light year" is not an amount of time.

It's an amount of distance ... the distance that light travels
through space in one year.

1 light year = 5,878,625,372,000 miles
(rounded to the nearest thousand miles)

1 light-year = 9,460,730,473,000 kilometers
(rounded to the nearest thousand kilometers)

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A 2 kg, frictionless block is attached to a horizontal, ideal spring with spring constant 300 N/m. At t = 0 the spring is neithe

schepotkina [342]

Answer:

Explanation:

Given that,

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M = 2kg

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Vo is the initial velocity =12m/s

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A 60 kg acrobat is in the middle of a 10 m long tightrope. The center of the rope dropped 30 cm in relation to the ends that are

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Answer:

The tension in each half of the rope, is approximately 4,908.8 N

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Weight, W = Mass, m × The acceleration due to gravity, g

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The angle the dropped rope makes with the horizontal, θ is given as follows;

θ = arctan((0.3 m)/(5 m)) = arctan(0.06) ≈ 3.434°

At equilibrium, the sum of vertical forces, $\Sigma F_y$ = 0

The vertical component of the tension, $T_y$ , in each half of the rope is given as follows;

$T_y$ = T × sin(θ)

∴ $\Sigma F_y$ = W + T × sin(θ) + T × sin(θ) = W + 2 × T × sin(θ)

Plugging in the values, with θ = arctan(0.06) for accuracy, we get;

588 N + 2 × T × sin(arctan(0.06) = 0

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-T= 588 N/(2 × sin(arctan(0.06)) = 4,908.81208 N ≈ 4,908.8 N

The tension in each half of the rope, T ≈ 4,908.8 N.

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