Chemistry, 28.04.2021 20:00 hopecastillo83098
A woman raises window blinds by pulling down on the cord. How is this changing the amount of work done on the blinds? A. The work is harder by changing the amount of force applied. B. The work is harder by changing the direction of the force. C. The work is easier by changing the direction of the force. D. The work is easier by increasing the time the force is applied.​
Answers: 3
Chemistry, 21.06.2019 13:40
Enough of a monoprotic weak acid is dissolved in water to produce a 0.0172 m solution. if the ph of the resulting solution is 2.39 at 20 °c, determine the pka for the acid.
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Chemistry, 22.06.2019 06:30
Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line
Answers: 1
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Which can be observed only in a microscopic view? a) structure of a muscle cell b) shape of a soybean plant c) foam insulation d) x-ray of a knee joint
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A woman raises window blinds by pulling down on the cord. How is this changing the amount of work do...
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