Solve the all parts of given problem:
Problem: The potential difference between two plates is 500 V and the separation between the plates is 7.00 cm.
Part A: An electron is released from next to the negative plate. What is its velocity when it is 2.00 cm from the positive plate?
Part B: How much work would you have to do to move a proton next to the negative plate to 2.00 cm from the positive plate?
Please show all work so I can fully understand all concepts! Thanks.