If the amplitude of a wave is increased the frequency of the wave will

Could someone . i have tried to solve myself but my calculation is off

In the first law of thermodynamics, triangle e=q-w, what does q stand for

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.