A pendulum has a mass of 1.50 kg and is suspended at the end of a 25 cm string. If it is moved horizontally 10 cm from equilibrium position and then released, determine its period. Select one: O a. 0.165 O b. 1.00 s O C. 0.505 O d. 6.25 5 Define mechanical resonance. Select one: O a. Another name for simple harmonic motion O b. The tendency of a system to oscillate at maximum amplitude at a specific frequency O c. The frequency at which one object makes a second object vibrate O d. The frequency at which a system naturally vibrates Clear my choice The speed of any mechanical wave depends on Select one: O a. its amplitude after interfering destructively O b. the medium through which it travels O c. the frequency of the source O d. its reflection from a surface Clear my choice