Suppose you increase your walking speed from 7 m/s to 12 m/s in a period of 1 s. what is your acceleration?

In the water cycle , when does water undergo a chemical change

In an experiment examining the effects tai chi on arthritis pain, callahan (2010) selected a large sample of individuals with doctor-diagnosed arthritis. half of the participants immediately began a tai chi course and the other half (the control group) waited 8 weeks before beginning. at the end of 8 weeks, the individuals who had experienced tai chi had less arthritis pain that those who had not participated in the course.

How does the human body lever work?