Physics, 30.06.2019 15:30, shanicejordan
Compare and contrast between reflection and refraction. be sure to be specific in your explanation and state in your own words.
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Physics, 23.06.2019 01:00, diegovaldes25
What happens when the number of protons in an atom changes
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Physics, 23.06.2019 04:00, abelinoperez652
Acaregiver's love, affection, and acceptance are considered conditional if they're given only when the child is well-behaved or meets set expectations. t or f
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Physics, 23.06.2019 17:30, jayp02
Wo dimensional dynamics often involves solving for two unknown quantities in two separate equations describing the total force. the block in (figure 1) has a mass m=10kg and is being pulled by a force f on a table with coefficient of static friction îľs=0.3. four forces act on it: the applied force f (directed î¸=30â above the horizontal). the force of gravity fg=mg (directly down, where g=9.8m/s2). the normal force n (directly up). the force of static friction fs (directly left, opposing any potential motion). if we want to find the size of the force necessary to just barely overcome static friction (in which case fs=îľsn), we use the condition that the sum of the forces in both directions must be 0. using some basic trigonometry, we can write this condition out for the forces in both the horizontal and vertical directions, respectively, as: fcosî¸â’îľsn=0 fsinî¸+nâ’mg=0 in order to find the magnitude of force f, we have to solve a system of two equations with both f and the normal force n unknown. use the methods we have learned to find an expression for f in terms of m, g, î¸, and îľs (no n).
Answers: 3
Compare and contrast between reflection and refraction. be sure to be specific in your explanation a...
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