GroupActivityUnit_3_Draft

GroupActivityUnit_3_Draft - DRAFT 5. A traditional water...

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DRAFT 5. A traditional water cooler has a large bottle of water turned upside down so that its neck is submerged in a small chilled water reservoir at the top of the water cooler. The water level in the small reservoir remains just above the neck of the bottle. If you open the valve to let water out of the reservoir, bubbles of air rise up into the water bottle and the level of water in the bottle goes down. a. Since there is no true seal between the neck of the bottle and the reservoir, what holds the water up inside the water bottle? (RB) The pressure inside the bottle is uniformed which mean that each portion of the water feels no net force, which in turn cause it not to accelerate. b. When you open the valve at the bottom of the water cooler, the water flows out into your glass. What provides the force needed to make the water accelerate? (PB) this would be gravity like the principles discussed in Chapter 5 about Gravity and Water Pressure. (RB) The water accelerates in response to the unbalances in pressure when you open the
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GroupActivityUnit_3_Draft - DRAFT 5. A traditional water...

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