Please show all of your work for all of the answers

Circle one answer per multiple choice problem. a. A simple pendulum with mass, m, undergoing simple harmonic motion initially has an angular frequenCy of to. If the length of the pendulum is doubled what is the new angular frequency? a) 2m b) 2w b. A sinusoidal wave traveling on a string with linear mass density a = 0.6 kg / m has a period of oscillation of 0.5 seconds. If the wavenumber is 317 rad/m then what is the tension in the string? a) 1.07 N b) 1.67 N c) 0.84 N d) 0.54 N c. A wooden block is oating on salt water with a density of p8_w_ = 1025 kg/m3. If 1/4 of the block is submerged then what is the density of the wooden block closest to? a) 310 kg/m3 b) 555 kg/m3 c) 256 kg/m3 d) 418 kg/m3