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Physics, 22.06.2019 08:30
The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.
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You can watch static electricity in action by rubbing an inflated balloon against your hair. your hair will actually stand on its end! it does this because each hair becomes charged, and they all repel one another.
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Physics, 22.06.2019 22:50
The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?
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Physics, 22.06.2019 23:30
Which of the following forces require physical contact? tension air resistance friction magnetic force applied force
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What do you mean by relative motion...
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