I have an upcoming physics test on Monday and I am feeling extremely anxious about it. If you have any straightforward formulas or helpful advice that you could share, I would be immensely grateful for your assistance. Thank you!

Please Answer the Following Questions (and please just ignore my work I have no idea if it is right lol).

9. A centrifuge rotates so that 0.25 m from the center is traveling at 343 m/s (the speed of sound). How many RPM is this? What is its angular velocity? 3&( 345mm : \"(0Q , Zer) 10. What is the angular velocity (in rad / s and RPM) of the following: A. The hour hand of a clock. B. The minutes hand of a clock. C. The seconds hand of a clock.' MC" the = 51.65%\"me A. 1.45x10'4 rad/s = 0.0014 RPM B. 0.0017 rad/s = 0.017 RPM C. 0.105 rad/s = 1 RPM hr = 7.25x10-6 m/s min = 2.55x10-4 m/s sec = 0.0126 m/s No angular acceleration 12. A wheel is spinning at 5 rad / s. a. How many radians will it turn through in 20 second? b. How many revolutions is this