Answer:
The answer would be A. The waves that heat a cup of water in a microwave oven
the above picture might help
velocity
Explanation:
edge 2021
Rotate it slowly to establish whether the spot moves. If it is broken, it will stay as it is. By rotating it the electrons' path to the centre of the screen will be tilted to another position by any external disturbing field.
It's 31
add 15 and 16
