vf=vi-gt (at peak vf = 0)
vi=gt
44=9.8t
t=4.49 s
time return = time upward = 4.49 s
The total mechanical energy of the skydiver is 178,000 J.
The given parameters;
- <em>Kinetic Energy of the skydiver, K.E = 100,000 Joule</em>
- <em>Gravitational Potential Energy of the skydiver, P.E = 78,000 Joules.</em>
<em />
The total mechanical energy of the skydiver is the sum of the kinetic energy and the potential energy.
<em>Total mechanical energy = K.E + P.E</em>
Total mechanical energy = 100,000 J + 78,000 J
Total mechanical energy = 178,000 J
Thus, the total mechanical energy of the skydiver is 178,000 J.
Learn more here:brainly.com/question/13818076
There's not enough information given in the problem to calculate that answer.
A leaf falling from a tree on Earth, a sheet of printer paper falling off the back
of a truck on Venus, and a steel ball sinking through a bucket of Scotch whiskey
on Mars, might all reach the bottom in 0.75 second. The time it would take each
of them to fall the same distance through a vacuum in the same place would be
different, and the 0.75 second is not enough to enable you derive it ... <em>even</em> if
you <em>did</em> know the acceleration of gravity in each place. All you can say is that
without resistance, it would fall faster, and hit bottom in <em>less than</em> 0.75 second.
I believe the answer will be radiation
The lower case m =Apparent magnitude