Physics, 09.08.2019 06:10 PrisonKing3749
Although the copernican system was largely correct to place the sun at the center of all planetary motion, the model still gave inaccurate predictions for planetary positions. explain the flaw in the copernican model that hindered its accuracy.
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Physics, 20.06.2019 18:02
Why did ptolemy have to introduce multiple circles of motion for the planets instead of a single, simple circle to represent the planetâs motion around the sun?
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Physics, 22.06.2019 18:00
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
Physics, 23.06.2019 02:00
Elements that have one valence electron and are very reactive are called
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Although the copernican system was largely correct to place the sun at the center of all planetary m...
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