Answer:
The time is
The speed is
Explanation:
From the question we are told that
The height of the cliff is
Generally from kinematic equation we have that
before the jump the persons initial velocity is u = 0 m/s
So
=>
Generally from kinematic equation
=>
=>
You would use the equation Q=cmΔT, where Q is the amount of heat added, c is the specific heat of the substance (or the amount of heat needed per unit of mass to raise the temperature by one degree Celsius), m is mass, and <span>ΔT is the change in temperature. In this case, Q, heat added, would be equal to (1)(90)(86), which equals 7740 calories.</span>
Electrons must be excited