Answer:
curved
blue
light
matter
gravity
The type of stars in the areas give different colors to the galactic disk. The galactic disk appears blue because it has a large proportion of young, hot, main-sequence stars. The galactic bulge appears red because it contains many red giants and supergiants. The reddish hue of the galactic bulge indicates that new stars aren't being formed there.
Explanation:
Maybe the word could be converted?
Answer:
29.16 J
Explanation:
From Hook's law,
W = 1/2(ke²)..................... Equation 1
Where W = work done, k = Spring constant, e = extension.
Given: W = 9 J, e = 0.5 m.
Substitute into equation 1
9 = 1/2(k×0.5²)
Solve for k
k = 18/0.5²
k = 72 N/m.
The work done required to stretch the spring by additional 0.4 m is
W = 1/2(72)(0.4+0.5)²
W = 36(0.9²)
W = 29.16 J.
Answer:
F = 29.64 × 10-¹¹N
Explanation:
From newton's law of gravitation which states that every object in the universe will attract each other with a force which is directly proportional to the product of their masses and inversely proportional to the square of their distance apart.
That is, F = (Gm1m2)/ r²
From the question m1=4kg, m2 = 2.5kg, r= 1.5m,G = 6.67×10-¹¹
F=( 6.67×10-¹¹ × 4 × 2.5) / 1.5²
F = (66.7×10-¹¹) / 2.25
F = 66.7/2.25 × 10-¹¹ N
F = 29.64 × 10-¹¹N
F = 29.64 × 10-¹¹N
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