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Physics, 31.01.2020 09:58, Anikarenee
An unknown fiber sample is found at a crime scene. forensic scientists measure its index of refraction and obtain a value of 1.48. a suspect's jacket was made of dacron polyester, his jeans were made of cotton, his shirt was made of rayon, and his tie was made of acetate. which piece of clothing may match the fiber at the crime scene?
question 12 options:
tie
shirt
jeans
jacket
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Answers: 3
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Physics, 22.06.2019 19:20, anaiyamills
Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.
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Physics, 22.06.2019 23:40, redraider4915
Certain bacteria (such as aquaspirillum magnetotacticum) tend to swim toward the earth’s geographic north pole because they contain tiny particles, called magnetosomes, that are sensitive to a magnetic field. if a transmission line carrying 100 a is laid underwater, at what range of distances would the magnetic field from this line be great enough to interfere with the migration of these bacteria? (assume that a field less than 5% of the earth’s field would have little effect on the bacteria. take the earth’s field to be 5.0 * 10-5 t, and ignore the effects of the seawater.)
Answers: 1
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An unknown fiber sample is found at a crime scene. forensic scientists measure its index of refracti...
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