Q1 : A transverse wave produced on spring has a frequency of 190Hz and travels along the length of the spring of 90m, in 0.5sec. aWhat is the period of the wave? b What is the speed of the wave? c What is wavelength of the wave?

22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?