An object, initially at rest, moves 475 m in 19 s. What is its acceleration? *

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

The image shows the positions of a car on a roller coaster track. arrange the cars in order based on their gravitational potential energy. begin with the lowest potential energy and end with the highest.

Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?