Is there information in the previous question which relates to this one?
IV - Temperature
DV - Light intensity
Barometer duhhhh what’s else a ruler
Answer:
The given figure shows two men M and N facing two flat and hard walls, wall 1 and wall 2. Man N fires a gun. Man M hears two echoes, one from wall 1 and second from wall 2. The speed of sound in
air is given to be 325 m/s. After the firing of the gun by the man N, the man M will hear the first echo in how many seconds?
Answer:
Explanation:
12.)
A. Opposite poles attract
B. Same poles repel
13.)
IDK
