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Physics, 21.06.2019 22:30
An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)
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Physics, 22.06.2019 22:20
Which symbol in the first law of thermodynamics represents the sum of the chemical and thermal energy stored in atoms and molecules? a. q b.w c.v d.u
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Physics, 23.06.2019 01:00
What electron configurations do atoms usually achieve by sharing electrons to form covalent bonds?
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What is the potential drop across r3? (r1 = 20 ω, r2 = 40 ω, r3= 60 ω, v = 60 v) (ohm's law: v = i...
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