Answer: 20360 N
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I think it’s A. Mining and logging are huge factors
Answer:
F = 8840.7 N
Explanation:
The parameters given are:
Length L = 3 metres
Extension e = 3 × 3 = 9m
Force constant K = 982.3 Newton per metre
From Hook's law,
Provided the elastic limit is not extended, the extension is directly proportional to the force applied.
That is,
F = Ke
Substitute all the parameters into the formula
F = 982.3 × 9
F = 8840.7 N
Explanation:
A molecular cloud also called a stellar nursery , is a type of the interstellar cloud, with the composition of commonly the molecular hydrogen ,
In dark clouds , the accumulation of the dust in a specific location , which blocks the starlight and hence , stopping ionization , and thereby making that area dark .
They do not fill all of the intersteller space , because , the number of dust grains only account for a fraction of the volume of the intersteller space .
Answer:
θ1 = 33.38°
Explanation:
From Snell's law of refraction,
n1•sinθ1 = n2•sinθ2
We are given ;
Angle of refraction; θ2 = (90 - 26.4°) = 63.6°
Index of refraction; n1 = 1.628
Index of refraction in air; n2 will have a constant value of 1
Now, we are looking for angle of incidence θ1, so let's make θ1 the subject;
n1•sinθ1 = n2•sinθ2
So, sinθ1 = (n2•sinθ2)/n1
Plugging in the relevant values;
sinθ1 = (1 x sin 63.6)/1.628
sinθ1 = 0.5502
θ1 = sin^(-1)0.5502
θ1 = 33.38°
