We can take as positive direction the direction of the train, and as negative direction the direction of the girl. The speed of the train relative to the girl will be given by the difference between the two velocities:
which means
The reversing of the magnet polarity will explain the different current reading.
Answer: Option D
<u>Explanation:</u>
According to Faraday's law of inductance, whenever a bar magnet is moved toward a stationary coil at constant speed, current will be generated in that coil. So in this case, the first maximum current in the above situation say A is recorded successfully.
Similarly, when the arrangement is kept as it is, in situation B, the current is observed to have different reading. This may be because of the polarity of the magnet would have changed leading to different current reading.
Answer:
hold on let me check my answer
Explanation:
Answer:
Explanation:
The energy lost by the handle in lowering is equal to the energy gained by the car in raising the height.
As the mass of car is much more as compared to the jack, so the height raised by the car is very small as compared to the handle of jack.
Different stages of the cycle gives off different wavelengths of light because more types elements are being made as you go farther down the cycle. So looking at the wavelengths that the light gives off can determine what stage a star is currently in
