b) Find the critical radius "rc" as we called in class in terms of

Calculate the following values a) Period 500m s to the frequency b) Frequency 25 Hz to the period c) Angle 35° to radians d) Radians t/4 to degrees

I asked for problems 6 and 7 to be answered, but I did not get a properly structured answered as the example shows on problem number 1. Here is the link to the questions I already had answered, could you please rewrite the answer so its properly answered as the example shows (Problem 1)?   https://www.bartleby.com/questions-and-answers/it-vivch-print-reading-for-industry-228-class-date-name-review-activity-112-for-each-local-note-or-c/cadc3f7b-2c2f-4471-842b-5a84bf505857

Needs Complete typed solution with 100 % accuracy.