Study the position-time graph for a bicycle.

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

True or false graphs must include scales that increase by the same amount

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space. b. we'll know it immediately because it will be brighter than the full moon in the sky. c. we won't know about it until 600 years from now. d. none of the above.