<span>A.Emission Spectrum
All the stars have their corresponding, unique spectrum which tells it's identity.
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Answer:
Acceleration = a = -1.94 m/s^2
Explanation:
Weight of the bundle = W = mg
m = W/g = 473/9.8
m = 48.26 kg
There are two forces acting on the bundle such as tension in the upward direction and weight in the downward direction. So, according to newton’s second law of motion:
Sum of forces = ma
T - W = ma
a = (T – W)/m
a = (379 - 473)/48.26
a = -1.94 m/s^2
Negative sign shows that the acceleration is in the downward direction.
B, since B claims that the heat is transferred, while A and D have energy decreasing or being destroyed and C has energy being created. First law of thermodynamics in layman terms: Energy can neither be created nor destroyed
Answer:
About 1-3 km
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