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2 answers:
It tells you that a star spectrum tells what atoms make up the star
B. A star's emissioin spectrum tell what atoms make up the star.
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Answer:
a) a = 4.9 m/s²
b) a = 1.5 m/s²
Explanation:
no friction
F = ma
gsinθ = ma
a = gsinθ
a = 9.8sin30
a = 4.9 m/s²
friction
gsinθ - μmgcosθ = ma
a = g(sinθ - μcosθ)
a = 9.8(sin30 - 0.4cos30)
a = 1.5051...
Answer:
Explanation:
By using relation,
Speed of light = frequency × wavelength (in m)
I think the answer is (C.) but im not sure
A virtual image is the answer.
Answer:
Eletromagnetic radiation which is also known as visible light.
Explanation:
