The angular acceleration of an object as a function of time is given by the equation: alpha open parentheses t close parentheses equals open parentheses 2 rad over straight s cubed close parentheses t minus open parentheses 6 rad over straight s to the power of 4 close parentheses t squared what is the change in the angular velocity of the object (in rad/s) from t = 0 s to t = 2 s?

this allows people to make the best decision or pursue the best option. when alternatives are weighed using their advantages and disadvantages, the option whose disadvantages outweigh the advantages (based on a qualitative or quantitative analysis) are shunned while those whose advantages outweigh their disadvantages are pursued.  

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up

you can cut your hand off if your not