The author’s attitude toward the use of social networking as one’s
primary source of interactions with friends and family is one of

of the following words means "to make something unnecessary"? who talke constantlyor in na

What is the meaning of the prefix un-? a. over b. above c. under d. not

Ateacher attaches a ball to a meter long string and whirls it around in a horizontal circle at constant speed. the teacher explains that the string is what makes the ball go in a circle. why is the string necessary? a) the string is needed to apply a torque to the ball. b) the string is needed to push on the ball to get it up to speed. c) circle motion requires an inertia which is provided by the string. d) circle motion requires a force to give it a centripetal acceleratio