Answer:
1: The formation of elements heavier than iron and nickel requires the input of energy. Supernova explosions result when the cores of massive stars have exhausted their fuel supplies and burned everything into iron and nickel. The nuclei with mass heavier than nickel are thought to be formed during these explosions.
Explanation:
2: The more luminous they are, the more reactions are taking place in their cores. Massive stars live shorter lives than the common small stars because even though they have a larger amount of hydrogen for nuclear reactions, their rate of consuming their fuel is very much greater.
The given statement about the identification of poor performers is a challenge that has existed since the earliest days of performance management is TRUE
<h3>What is Performance Management?</h3>
This refers to the corporate management tool that enables managers to track and analyze the work of their employers.
Hence, we can see that the identification of poor performers is a challenge that has existed since the earliest days of performance management and this also shows that the performance management process does not seem to be particularly good at weeding out poor performers.
Read more about performance management here:
brainly.com/question/24673911
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It’s the first one i know because i took the test i hope this helps
Answer:
The electromagnetic spectrum from lowest energy/longest wavelength (at the top) to highest Electromagnetic radiation can be described in terms of a stream of mass-less particles, Each photon contains a certain amount of energy. Radio waves have photons with low energies.
Explanation:
