b lock 2 control Canvas 2 200 m/s 1.38 m/s Question 7 The position of a 0.64-kg mass undergoing simple harmonic motion is given by x = (0.160 m) cos (nt/16). What is its period of oscillation? 8.0 s 4.0 s O 32 s O 100 s O 16 s esc Question 8 5.6 mm O 7.6 mm Bats can detect small objects such as insects that are of a size approximately that of one wavelength. If bats emit a chirp at a frequency of 60 kHz, and the speed of sound waves in air is 335 m/s, what is the smallest size insect they can detect? ! 1 Q A 1 N e 2 W S #3 X option command E D $ 54 4 C R F do 5 % V T G < 6 MacBook Pro B Y H & 7 U N 8 J 1 M 9 K 1 pts 1 pts O < H ) 0 L command P