A0.700-kg particle has a speed of 1.90 m/s at point circled a and kinetic energy of 7.20 j at point circled b. (a) what is its kinetic energy at circled a? 1.2635 correct: your answer is correct. j (b) what is its speed at circled b? 4.54 correct: your answer is correct. m/s (c) what is the net work done on the particle by external forces as it moves from circled a to circled b?

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