Answer:
See Explanation
Explanation:
The principle of conservation of energy states that; energy can neither be created nor destroyed but is converted from one form to another.
In view of this principle, Ella can not be correct when she says that a lot of energy has disappeared. The use of the term "disappeared" connotes the idea that the energy no longer exists which does not happen.
Hence, energy can not "disappear" from hot water rather the energy in the water may be transferred to the surroundings.
When K = 0, the motion's turning points take place. Think about frictionless one-dimensional motion in the x-direction. So whenever Etotal = U, K(x) = 0 and v = 0. (x).
<h3>How to describe friction</h3>
friction is the resistance to a thing moving or rolling over another solid object. Although frictional forces can be advantageous, such as the traction required to walk without slipping, they also provide a significant amount of resistance to motion.
<h3>What leads to friction?</h3>
Because of the imperfections on the two surfaces in contact, friction is produced. Small imperfections can be found on even the smoothest surfaces, and when two surfaces interact with one another, they cause friction.
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The Sun has<span> an "absolute magnitude" of </span>4.83 and an "apparent" magnitude of -26.8. (Which is the difference between the numbers). <span>Scientists use what is know as "</span>Absolute" Magnitude<span> to help them understand and compute how bright a star really is. The "</span>absolute" magnitude<span> of an object, such as a star, equals how bright that object would look if it were 10 parsecs, or 32.6 light years away from the Earth.</span>
