Physics, 03.08.2019 13:00, OllieMoo

Astronomers believe that the universe began as an enclosed, cold object. true or false?

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Physics, 22.06.2019 02:50, briee998

What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential

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Physics, 22.06.2019 18:00, RyannLambertt7141

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.

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Physics, 23.06.2019 02:30, MeTooFoodYum

Why does the liquid rise up through the dip tube when the valve is open

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Physics, 23.06.2019 04:31, ayoismeisalex

Water flows through a garden hose which is attached to a nozzle. the water flows through hose with a speed of 2.19 m/s and through the nozzle with a speed of 19.8 m/s. calculate the maximum height (in m) to which water could be squirted if it emerges from the nozzle and emerges with the nozzle removed.