Author Question: The acceleration of gravity on Earth is approximately 10 m/s2 (more precisely, 9.8 m/s2). If you ... (Read 105 times)

drink · **on:** Jul 27, 2018

The acceleration of gravity on Earth is approximately 10 m/s2 (more precisely, 9.8 m/s2). If you drop a rock from a tall building, about how fast will it be falling after 3 seconds?

A) 30 m/s B) 10 m/s C) 10 m/s2 D) 30 m/s2 E) 20 m/s

Question 2

Which of these is the dominant mechanism for the removal of carbon dioxide from the atmosphere?

A) subduction
B) photosynthesis in plants
C) dissolving carbon dioxide in seawater
D) formation of carbonate-rich rocks at the seafloor