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Physics, 21.06.2019 17:30, corynanderson16
The position of a dragonfly that is flying parallel to the ground is given as a function of time by rβ =[2.90m+(0.0900m/s2)t2]i^β (0.0150m/s3)t3j^. a: at what value of t does the velocity vector of the insect make an angle of 34.0 degree clockwise from the x-axis? b: at the time calculated in part (a), what is the magnitude of the acceleration vector of the insect? c : at the time calculated in part (a), what is the direction of the acceleration vector of the insect?
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Physics, 22.06.2019 18:00, Yungnaudie
Astudent weighing 700 n climbs at constant speed to the top of an 8 m vertical rope in 10 s. the average power expended by the student to overcome gravity is most nearly
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Physics, 22.06.2019 18:30, kalithekittenqueen
Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excess electrons is typical. what is the magnitude of the electric force on a protein with this charge in a 1600n/c electric field? write in two significant numbers, and also in newton
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Physics, 22.06.2019 19:00, maddied2443
Matter that emits no light at any wavelength is called
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