Physics, 04.11.2019 17:31 studybug2306
100 points. .
a boy rubs two balloons against his sweater. one balloon acquires a charge of 3.0 e -6 c. the other balloon acquires a charge of 2.5 e -7 c. if the balloons are positioned 1 cm apart, what is the electrical force between them?
remember to identify all data (givens and unknowns), list equations used, show all your work, and include units and the proper number of significant digits to receive full credit.
Answers: 3
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The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island
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A10 kg box initially at rest is pulled 18 meters across a horizontal, frictionless surface by a 40 n force. what is the block’s final velocity over the 18 meters?
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Researchers conducted an experiment to identify the effects of three different hand sanitizers on the growth of bacteria. the researchers grew one type of bacteria in twenty-four identical covered petri dishes. then, they opened eighteen petri dishes and applied the three hand sanitizers to six petri dishes each. they left the remaining six petri dishes closed as a control group. when the researchers measured the growth of bacteria two days later, the six dishes that had no hand sanitizer showed the least amount of bacterial growth. the researchers concluded that not using any hand sanitizer would lead to the least bacterial growth. which statement best explains why the researchers’ conclusion was not justified? the experiment tested too many variables. the control group was not treated the same as the experimental group. the sample size of twenty-four petri dishes is not large enough. the single type of bacteria is not adequate to make any conclusions.
Answers: 1
100 points. .
a boy rubs two balloons against his sweater. one balloon acquires a charg...
a boy rubs two balloons against his sweater. one balloon acquires a charg...
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