Exercise aka physical health
Answer:
We use the first law of motion.
Explanation:
1st: Newton's first law of motion states that an object in motion will stay in motion unless acted upon by a force. ... In swimming, the force produced by the swimmer is equal to the mass of the swimmer multiplied by the acceleration of the swimmer in the water.
In systole, you should expect that your mitral valve and tricuspid valve to be closed (snap shut) and you should expect your pulmonary valve and aortic valve to open. Hope this helps
A. You think positively about yourself
