Answer:
You put the add sign, so it would be 49. I don't believe that is what you meant to put though.
Explanation:
Answer:
No its not possible in that yes heat flow is due to temperature different but with time equilibrium in temperature is reached hence there is no temperature difference at both ends at this time
The frequency of the wheel is the number of revolutions per second:

And now we can calculate the angular speed, which is given by:

in the clockwise direction.
Answer:
A, C
Explanation:
SOUND ENERGY - energy from sound
MAGNETIC ENERGY - energy with magnetism