A proton moves along the x-axis where some arrangement of charges has produced the potential V(x) = Vo sin(27x/X), where Vo = 4000 V and λ = 1.0 mm. Part A What minimum speed must the proton have at x = 0 to move down the axis without being reflected? Express your answer with the appropriate units. Up = Submit Part B μÅ Value Request Answer Units μA ? What is the maximum speed reached by a proton that at x = 0 has the speed you calculated in part A? Express your answer with the appropriate units. ?
Stellar evolution
We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.
Red Shift
It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.
I need help with part A and B I don't understand it and can you label which one is A and which one is B thank you
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