Manufacturers of headache remedies routinely claim that their own brands are more potent pain relievers than the competing brands. their way of making the comparison is to compare the number of molecules in the standard dosage. tylenol uses 325 mg of acetaminophen (c8h9no2) as the standard dose, while advil uses 2.00 x 102 mg of ibuprofen (c13h18o2). find the number of molecules of pain reliever in the standard doses of

(a) tylenol and
(b) advil.

Ateam of astronauts is on a mission to land on and explore a large asteroid. in addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. with what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? assume that the asteroid is approximately spherical, with an average density p 3.84 x108 g/m3 and volume v 2.17 x 1012 m3 recall that the universal gravitational constant is g 6.67 x 10-11 n m2/kg2

A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential