Someone help me! you get 27 points if you get it right
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Physics, 22.06.2019 02:00
In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth
Answers: 1
Physics, 22.06.2019 19:20
Two kilograms of air within a pistonโcylinder 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, 23.06.2019 05:00
What about a rubber band, can it change its shape? is it a solid?
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Physics, 23.06.2019 14:00
Which color of light has a longer wavelength than yellow? a. red b. blue c. green d. violet
Answers: 2
Mathematics, 05.10.2019 02:40
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Mathematics, 05.10.2019 02:40