Physics, 30.01.2020 14:05, jetblackcap
How does a green leaf appear in red light? use what you know about reflection and absorption of light.
1.black
2.green
3.greenish-red
4.red
5.white
Answers: 2
Physics, 23.06.2019 00:40, maggie2018
Researchers conducted an experiment to identify the effects of three different hand sanitizers on the growth of bacteria. the researchers grew one type of bacteria in twenty-four identical covered petri dishes. then, they opened eighteen petri dishes and applied the three hand sanitizers to six petri dishes each. they left the remaining six petri dishes closed as a control group. when the researchers measured the growth of bacteria two days later, the six dishes that had no hand sanitizer showed the least amount of bacterial growth. the researchers concluded that not using any hand sanitizer would lead to the least bacterial growth. which statement best explains why the researchers’ conclusion was not justified? the experiment tested too many variables. the control group was not treated the same as the experimental group. the sample size of twenty-four petri dishes is not large enough. the single type of bacteria is not adequate to make any conclusions.
Answers: 1
Physics, 23.06.2019 21:00, Kkampudiaa
Asample of a gas in a rigid container has an initial pressure of 5 atm at a temperature of 254.5 k. the temperature is decreased to 101.8 k. what is the new pressure?
Answers: 3
Physics, 23.06.2019 23:30, judywilkerson1114
An experiment has a single factor with threethree groups and ninenine values in each group. a. how many degrees of freedom are there in determining the among-group variation? b. how many degrees of freedom are there in determining the within-group variation? c. how many degrees of freedom are there in determining the total variation?
Answers: 1
How does a green leaf appear in red light? use what you know about reflection and absorption of lig...
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