Answer:
yoooooooooooooooooooooooooooooooooooooooo
Explanation:
Explanation:
It is given that A body weighs 20gf in air and 18. 0gf in water. Hence, the answer X-3 = 7
The sound absorption for wood is greater than the sound absorption coeffiecient for concrete at most frequencies, hence based on the coefficient of absorption for each material, wood is the best choice.
It will act upon a buoyant force on the magnitude of which is equal to weight of the fluid