<span>
The taut guitar string haspotencial energy which we can see in action.</span> <span>· so option a is correct.</span>
P = m*v
7.5 = m*15
m = 7.5/15 = 0.5 kg
There’s no picture or question
The situation given above can be answered through the concept of the First Law of thermodynamics which states that the change in internal energy is equal to the difference between the work done and the heat added to the system. The work done by the object is negative and the heat added is positive.
change in internal energy = -500J + 1400 J = 900 J
