Answer quickly i'm doing the test in the following system, what is the clockwise torque? 150 nm1,200 nm2,400 nm4,800 nmquestion 2 (same image)which of the following is true about this system? it will rotate clockwise. it will rotate counterclockwise. it is balanced and will not rotate. question 3 (same image) in the following system, what is the counterclockwise torque? 150 nm1,200 nm2,400 nm4,800 nm

The frequency of a tuning fork can be found by the method shown. a long tube open at both ends is submerged in a beaker of water, and the vibrating tuning fork is placed near the top of the tube. the length l of the air column is adjusted by moving the tube vertically. the sound waves generated by the fork are reinforced when the length of the air column corresponds to one of the resonant frequencies of the tube. the smallest value for l for which a peak occurs in sound intensity is 7 cm. l what is the frequency of the tuning fork? the speed of sound in air is 345 m/s. answer in units of hz