How can a whale change the surface of the earth?

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

Is 9 correct? and can someone me with 10? it’s due tomorrow, you

What type of reaction fuels the processes seen here?