A student sees her physical science professor approaching on the sidewalk that runs by her dorm. She gets a water balloon and waits. When the professor is 2.0 s from being directly under her window 11 m above the sidewalk, she drops the balloon. You Finish the story.

A design requires a material to operate at normal atmospheric temperatures, be subjected to small applied forces, and have a low density and a low cost. Which of the following materials is most likely to best satisfy the design requirements?

(a) Alumina ceramic (b) Carbon steel (c) Polyethylene (d) Graphite-reinforced-epoxy composite

Clusters of galaxies are distributed in space ____

a. homogenously b. isotropically c. in long, narrow filaments surrounding empty voids d. statically e. in bubbles surrounded by empty walls

Using Jupiter's axial tilt, explain why its rings are harder to observe from Earth than even the dark rings of Uranus

What will be an ideal response?

The image formed in a plane mirror is

A) at the same distance in front of the mirror as the object is in front of the mirror. B) at the same distance behind the mirror as the object is in front of the mirror. C) at a shorter distance behind the mirror than the distance the object is in front of the mirror. D) a real image behind the mirror. E) at a larger distance behind the mirror than the distance the object is in front of the mirror.