What is the main fuel consumed in the core of a red giant? a. H b. C c. Fe d. He

1 answer:

vladimir1956 [14]3 years ago

4 0

What is the main fuel consumed in the core of a red giant?
The main fuel consumed in the core of a red giant is He or helium. The answer is letter D.

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A child in a boat throws a 5.80-kg package out horizontally with a speed of 10.0 m/s. The mass of the child is 24.6kg and the ma

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Answer:

-0.912 m/s

Explanation:

When the package is thrown out, momentum is conserved. The total momentum after is the same as the total momentum before, which is 0, since the boat was initially at rest.

$(m_c + m_b)v_b + m_pv_p = 0$

where $m_c = 24.6 kg, m_b = 39 kg, m_p = 5.8 kg$ are the mass of the child, the boat and the package, respectively. $, v_p = 10m/s, v_b$ are the velocity of the package and the boat after throwing.