A 1–kilogram block slides down a frictionless inclined plane 2.5 meters high. What is its velocity at the bottom of the plane? (Assume gravitational acceleration is 9.8 m/s2.) A. 2.5 m/s B. 3.9 m/s C. 7.0 m/s D. 9.8 m/s

Scientist have use computer models to create a series of maps that show how susceptible coastal cities in island countries are to the sea rising at different levels.the map shows that a 1 meter rise would swap cities all along the us eastern seaboard. a 6-meter sea level rise with sub merge a large part of florida. thermal expansion has already raise the oceans 10 to 20 centimeters the most likely cause,directly and indirectly, for such a rise in sea level is