A particle moves around a semicircle of radius R, from one end A of a diameter to the other B. It is attracted to its starting point A by a force proportional to its distance from A. When the particle is at B, the force towards A is F0. Calculate the work done against this force when the particle moves around the semicircle from A to B.

Shelly experiences a backward jolt when the driver starts the school bus. which of the following explains this phenomenon? a. the inertia of shelly b. the inertia of the bus c. the normal force of the seats on shelly d. the net force acting on shelly in a backward direction e. a zero net force acting on shelly

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o

Ineed this now one scientist feels that the changes in global climatic patterns may be good for the health of the biosphere. another scientist feels that sharp changes in climatic patterns could result in the extinction of the biosphere. which of these is the most likely reason the two scientists gave conflicting opinions on the impact of changes in the global climatic pattern? they do not have enough knowledge on the topic. they did not discuss the issue among themselves. they believe conflicting opinion strengthens science. they study different areas of science and have different scientific focuses.