Compare and contrast periods and groups on the periodic table

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?

Asher cycles 12 miles in 16 hours. what is his speed?

Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil