Explanation:
Momentum before = momentum after
m₁ u₁ + m₂ u₂ = m₁ v₁ + m₂ v₂
(65 kg) (0 m/s) + m (0 m/s) = (65 kg) (-3.5 m/s) + m (4 m/s)
m ≈ 57 kg
<h3><u>A</u><u>n</u><u>s</u><u>w</u><u>e</u><u>r</u><u>:</u><u>-</u></h3>
- Energy Transferre=11KJ
- Efficiency=35%
<h3>☆Usefully transferred energy:-</h3>
From my research, the question has the following choices:
a.the lowest frequency at which a standing wave is possible
b. the highest frequency at which s standing wave is possiblec. the only frequency at which a standing wave is possible
d. the only frequency at which standing wave is not possible
From there, the correct answer is A.
Answer:
Option b ( It is a closed system) is the appropriate answer.
Explanation:
- The mass transfer isn't made on a platform. There seems to be no mass transfer, the mechanism can't be separated as power lines will interfere beyond the physical boundaries including its fur patch.
- The mechanism can't however be separated and, while the mass transfer is indeed not present, several field lines will communicate well outside the mechanism.
The other options are not linked to the situation in question. Thus, the answer is correct.
