Mark and sofia walk together down a long, straight road. they walk without stopping for 4 miles. at this point sofia says their displacement during the trip must have been 4 miles; mark says their current position must be 4 miles. who, if either, is correct? a)markb)mark, only if their starting point is the origin of a coordinate systemc)sofia, only if their starting point is the origin of a coordinate systemd)sofia

Which feature indicates that mars resides in the inner region of the solar system

Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.