Classmate Suggested Question (slightly modified).  Between t…

Classmate Suggested Question (slightly modified).  Between the hours of 7 pm and 10 pm, 7.25 cars on average enter or leave an apartment building garage every hour. It is now 8:30 pm. What is the probability that exactly 4 cars enter or leave the garage by 8:45 pm?  Also, define your random variable, state how the RV is distributed with its parameter(s) values, the probability statement, and any assumptions you would need to solve this problem to receive full credit.   

Type your name as your signature to affirm that you will not…

Type your name as your signature to affirm that you will not use any sources other than your book, your class notes, and your brain for this exam.  Your signature affirms that you will not use your phone or any other device during this exam (other than the device that you are taking the exam on).  Your signature affirms that you will not use AI or internet searches (e.g., Google) to look anything up during the exam.

Two point charges are fixed in the x-y plane, as shown in th…

Two point charges are fixed in the x-y plane, as shown in the figure. The charges are QA = +5 × 10-9 C and QB = – 2 × 10-9 C. The (x, y) coordinates of each charge and of two points, C and D, are indicated in the figure, with coordinates given in meters. What is the electric potential difference between point D and C, VD-VC (in V)?