Answer:
5.791244495 KNm
Explanation:
The height h is given by, 
Potential energy, PE is given by
PE=mgh where m is mass of the woman, g is acceleration due to gravity whose value is taken as 
and h is already given hence substituting 77 Kg for m we obtain
PE=21.6567095 KNm
We also know that Kinetic energy is given by
where v is the velocity and substituting v for 20.3 we obtain
KE=15.865465 KNm
Friction work is the difference between PE and KE hence
Friction work=21.6567095 KNm-15865.465 Nm=5.791244495 KNm
Rotational motion may be described analytically for bodies undergoing pure rotation.
that is a prediction for a future experiment based on previous experiment results.
(guessing what will happen in the future experiment based on the results of the past experiments)
Answer:
210m/s
Explanation:
To find the speed of wave you need to multiply the wave length with the frequency.
