Explain why the following scenario fails to meet the definition of a fair test.
Dr. Grow...
Physics, 24.02.2020 22:24 jpdagle6921
Explain why the following scenario fails to meet the definition of a fair test.
Dr. Grow is studying Americansā preference for soft drinks. He is calling random phone numbers and asking people who answer to participate in a survey about their soft drink preference.
Answers: 3
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An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0Ā° above the horizontal. it then moves 127 ft at an angle of 46.0Ā° 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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On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( Ļ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?
Answers: 2
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Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1Ć105 wm-2k-1 and tā = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =
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You notice the birds sitting on the electrical wires which of the following explain why the birds don't get shocked
Answers: 2
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