Physics, 08.08.2019 22:10 krystalhurst97
The text says a star does not change its mass very much during the course of its main-sequence lifetime. while it is on the main sequence, a star converts about 10% of the hydrogen initially present into helium (remember it’s only the core of the star that is hot enough for fusion). look in earlier chapters to find out what percentage of the hydrogen mass involved in fusion is lost because it is converted to energy. by how much does the mass of the whole star change as a result of fusion? were we correct to say that the mass of a star does not change significantly while it is on the main sequence?
Answers: 2
Physics, 22.06.2019 14:30, joslynndiggs
Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)
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Physics, 22.06.2019 17:00, nathanb126
The force it would take to accelerate an 900-kg car at the rate of 6m/s2
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Physics, 22.06.2019 19:40, cordovatierra16
Two charged particles, q1 and q2, are located on the x-axis, with q1 at the origin and q2 initially at x1 = 12.2 mm. in this configuration, q1 exerts a repulsive force of 2.62 µn on q2. particle q2 is then moved to x2 = 18.0 mm. what is the force (magnitude and direction) that q2 exerts on q1 at this new location? (give the magnitude in µn.)
Answers: 1
The text says a star does not change its mass very much during the course of its main-sequence lifet...
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