Maggie is a member of her school's environmental club and is interested in recycling. she asks the question, "how does exposure to the environment affect recyclable plastics? "

An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.

Which changes of state do the labels represent? a: b: c:

During which interval are the persons represented by the graph not moving? a) 0 to 0.5 hrs b) 1.5 to 2 hrs c) 2 to 2.5 hrs d) 4.5 to 5 hrs