Answer:
Because Sun has lower metallicity
Explanation:
Metallicity means the presence of elements in any objects heavier than hydrogen or helium in abundance.
Though the Milky way galaxy is of about 13 billions years, Sun is only 5 billion years old because it took time to collect dust and gas for the formation of such big celestial body. Its metallicity is low which means it has only lower mass elements which took time to combine in order to form heavier elements thus producing light and heat.
Answer:
give me a minute to find the answer
Explanation:
<span>The first choice i correct. The second is also correct as it should obey the Law of Conservation of mass. The third choice is incorrect. It depends on the nature of the system. For example, for an ideal gas, you can define at least 2 parameters to set the system boundaries. The fourth choice is incorrect, a system can be theoretical or practical. Hence, the answers are the first and second choices.</span>
Answer:
A) The wave that travels through the rail reaches the microphone first.
B) separation in time between the arrivals of the two pulses is 0.01539 seconds.
Explanation:
Detailed explanation and calculation is shown in the image below
