Mass object of 75kg jumped from 233m tower. how fast travelling at lowest point​

What is the relationship between the wavelength of a wave and it's energy?

The place you get your hair cut has two nearly parallel mirrors 6.00 m apart. as you sit in the chair, your head is 2.00 m from the nearer mirror. looking toward this mirror, you first see your face and then, farther away, the back of your head. (the mirrors need to be slightly nonparallel for you to be able to see the back of your head, but you can treat them as parallel in this problem.) how far away does the back of your head appear to be?

What ia the energy of an object because of its potential and kinetic energies