A charge is accelerated from rest through a potential difference v and then enters a uniform magnetic field oriented perpendicular to its path. The field deflects the particle into a circular arc of radius r. If the accelerating potential is tripled, what will be the radius of the circular arc?

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.

Tim earns $9.20 per hour when he works at the college library how much money does he earn by working at the library for 4.5 hours

How should the syntax in this sentence be changed, if at all? the scientists spent years analyzing the results of numerous medical studies meant to identify the cause of the disease. no change the scientists spent years looking at the results of a variety of different medical studies meant to locate the cause of the disease. the scientists spent years reviewing medical study results to find the cause of the disease. the scientists spent years studying the results of many medical studies in order to uncover the cause of the disease.