D=m/V therefore the answer is 120/200 or 0.6
Answer:
Very few
Most open clusters form with at least 100 stars
Brainly, please.
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?
