Chemistry, 24.02.2020 17:57, justynejoseph6877
As the core of a star that is 1.4 or more times as massive as the Sun begins to yield to gravity and starts to shrink, it grows hotter and denser, and a new series of nuclear reactions begins, temporarily halting it's collapse. When the core becomes essentially just iron, fusion ceases, and, in less than a second, the star begins gravitational collapse, the core temperature rises to over 100 billion degrees, and the iron atoms are crushed together. The repulsive force between the nuclei overcomes the force of gravity, and the core recoils out from the heart of the star in an explosive shock wave called a .
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Chemistry, 22.06.2019 12:20, tenleywood
The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397
Answers: 2
Chemistry, 22.06.2019 14:50, wcraig1998
Complete the following statements to describe solids, liquids, and gases. select the correct answer from each drop-down menu. a solid a definite volume and a definite shape. a liquid a definite volume and a definite shape. a gas a definite volume and a definite shape
Answers: 1
Chemistry, 23.06.2019 00:30, quintink
How can you write e method for the experiment of separating sand from water by filtration process? 1-materials 2-steps 3-conclusion also the same for the separating process of water and salt by filtration or distillation. quick because i need to finish my hw
Answers: 2
As the core of a star that is 1.4 or more times as massive as the Sun begins to yield to gravity and...
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