A student tosses a ball off the roof of the school at an angle 45 degrees above the horizontal. After the ball leaves the student's hand, it's motion can be described in terms of displacement, velocity, and acceleration. For each item, is the quantity constant, changing linearly, or changing nonlinearly during consecutive time intervals?
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The pressure proportional to the area a- inversely b- directly c- increase d-decrease
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Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.
Answers: 1
A student tosses a ball off the roof of the school at an angle 45 degrees above the horizontal. Afte...
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