A 25-N force accelerates a boy on a cart at 0.5 m/s2. What is the mass of the boy and the cart? (Hint: Solve newton’s second law for mass).

Oxygen passes through capillary walls and into interstitial space where cells absorb ? a. nitrogen, b. oxygen, c. carbon dioxide, d. metabolic waste

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When writing fitness goals we encourage using the smart method. what does s-m-a-r-t stand for? use full sentences to explain what each letter stands for in their goals setting process.