Pls help me? also it's due today:(​

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Blank liquids and gases exert a buoyant force on objects placed in them

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.