Yes it is valid all the times under the consideration of acceleration due to gravity .it is not valid on space where there is no influence of gravity
I am so sure it's 600,000 x 500 so you get 300,000,000
Answer:
C. Increasing its buoyancy
Explanation:
You need two, maybe three things - something that's vibrating, a medium for those vibrations to propagate in, and a listener to hear it or recording equipment to pick it up
