mass of the box = 200kg velocity of the moving box = 5m/s height of the box = 1m
Required:
The comparison of the kinetic energy and potential energy
Solution:
Kinetic energy can be calculated using the formula:
KE = 0.5(mass)(velocity)² KE = 0.5(200kg)(5m/s)² KE = 2500 Joules
Potential energy can be calculated using the formula: PE = (mass)(gravity)(height) PE = (200kg)(9.8m/s²)(1m) PE = 1960 Joules
At the given conditions, the kinetic energy is greater than the potential energy. This means that the total energy is spent to move horizontally rather than vertically.
Since their wings and body develop the drag. When there is warm air then they expand their wings. Since,soaring birds and glider pilots have no engine, they always maintain their high speed to lift their weight in air for hours without expending power by convection
Aluminium has the least resistance since It has 3 free electrons per atom. Its resistivity is low compared to other metals provided in the choices (gold, nichrome, tungsten). Low resistivity of metals means a high conductance of the metal referred to.
According to Heisenberg's presumption of unpredictability, it's impossible to ascertain a quantum state viewpoint as well as momentum throughout tandem.
Also, unless we have accurate estimations throughout the situation, we will have a decreased consistency throughout the velocity as well as vice versa though too.
Other given choices are not connected to the given query. Thus the above is the right answer.
