The class I'm taking is physics for scientists and engineers!*** I need help with parts D and E only***I have attached the problem below! Please view attachment before answering. If you can please explain your answer so I can fully understand. Thank you so so much! Work and gravity(a) How much work does it take to lift a mass m a distance y against Earth'sgravitational field? Calculate this starting with the integral definition ofwork:W =F. di(b) At a height y, how much potential energy is stored?(c) If you drop the object from a height y, what speed will the object hit theground with?(d) Now, calculate the work it takes to move a mass m under the influence of thesun's gravity, from a distance r (far from the sun) to infinity. Let the sun havemass M.(e) How much gravitational potential energy is thus stored a distance r from thesun?

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Answered: Work and gravity (a) How much work does…

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I need help with part A and B, please explain step by step
I am needing assistance with this question in its entirety ***Please type your answer or write in print, because I have had great difficulty with understanding most handwritten assistance done in cursive or mixed print/cursive.
please answer a, b, and c
Free answer instructions: 1. At the top of the page write your name and problem version (A, B, or C) 2. Carefully read the problem 3. Write your solution to each sub-section separately (A, B, C) on paper Your solution can be turned in two ways: A. Scan or take a photo of your solution - make sure your scan is legible Make sure your file is in jpeg or pdf format (other formats will need to be converted). Upload your scanned solution using the "Choose a File" button beneath B. Turn in a hard-copy with your name on it to SRTC 134 by 12:45PM Version B A large disc-shaped grindstone is spinning at 500 revolutions/min. The grindstone has a mass 4.0 kg and radius 9.0 cm. The moment of inertia of a disc rotating about its center is given by I = MR² The power is shut off by the operator and to slow it down, she sharpens a 4 kg axe by holding it against the grindstone until it stops 7 s later. Assume the angular acceleration is constant while the grindstone is slowing down. (A) Draw a diagram…
Free answer instructions: 1. At the top of the page write your name and problem version (A, B, or C) 2. Carefully read the problem 3. Write your solution to each sub-section separately (A, B, C) on paper Your solution can be turned in two ways: A. Scan or take a photo of your solution - make sure your scan is legible Make sure your file is in jpeg or pdf format (other formats will need to be converted). Upload your scanned solution using the "Choose a File" button beneath B. Turn in a hard-copy with your name on it to SRTC 134 by 12:45PM Version A In a General Physics laboratory at Portland State, a block of mass m₁ is sliding along a near frictionless surface with initial velocity of V₁; and has a head-on elastic collision with a stationary block of mass m2. After the collision the blocks have velocities v₁fand v2f. Both masses are measured prior to the experiment and the initial speed of m₁ is also measured using a photo-gate instrument. (A) What equations from conservation are…
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Which if any of these students do you agree with ? Please explain your reasoning. For the first one