Help me please!! A 10-kg object is pushed across a rough surface. It begins at rest and accelerated to a speed of 4m/s in a distance of 5m. Which facts support the conclusion that the object experiences an unbalanced force?
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when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.