Nanotechnology . A). allows microscopic particles to inject medicine directly into cancer cells
B). focuses on the use of robots to perform surgical procedures
C). will eliminate the need for doctors
D). allows doctors to take high quality digital pictures inside the body

Astudent weighing 700 n climbs at constant speed to the top of an 8 m vertical rope in 10 s. the average power expended by the student to overcome gravity is most nearly

According to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does maria's voyage take according to samir?

Which of the following list the divisions of the geologic time scale in order from longest to shortest