The energy transfer diagram represents the energy of a person diving into a pool. how much thermal energy is generated? a) 1000 j b) 2000 j c) 7000 j d) 15,000 j

The correct answer is: 
A) 1000 J

In fact, energy cannot be destroyed nor created: this means that the total energy of the person must remain constant.

The initial energy of the person is U=8000 J, in form of gravitational potential energy. When he jumps and dives into the pool, this energy is converted into kinetic energy (K, 7000 J) and partially into thermal energy, Et. The final energy of the person, sum of kinetic energy and thermal energy, must be equal to the initial energy:

from which we can find the thermal energy:

Texture and composition are different because they are not the same aspect. texture has to do with feel and so on, where as composition is the chemical makeup which you cant touch like you can texture.

Wind or electric energy force force of friction