<u>True</u> is your answer.
Hope this helps....
To solve this problem it is necessary to apply the concepts related to the Conservation of Energy, for which it is necessary that any decrease made through the potential energy, is equivalent to the gain given in the kinetic energy or vice versa.
Mathematically this can be expressed as
Since there is no final potential energy (the height is zero), and the initial potential energy is equivalent to the work done we have to
Therefore the non-conservative work was done on the boy is 1.4kJ
A. low-level
would be the answer<span />
The boiling point is the point at which the vapor pressure becomes equal to the external pressure. In fact, below this point the vapor pressure is lower and the water bubbles can't escape because of the higher external pressure. Instead, when the water pressure reaches the external pressure, bubbles start to escape the water, and this is when boiling occurs. Therefore, the answer is "water pressure is 450 kPa, equal to the external pressure"