Physics, 19.05.2020 16:21 amiechap12
The density of dry air at 20 degrees celsius is 1.20 g/L. What is the mass of air, in kilograms, of a room that measures 24.0m by 15.0 m by 4.0 m
Answers: 2
Physics, 23.06.2019 00:40
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 01:20
What is the state of matter with a specific volume but no definite shape
Answers: 1
Physics, 23.06.2019 02:40
An impulse is the product of the on an object and time during which it is applied
Answers: 2
Physics, 23.06.2019 03:30
Aspring that is stretched 2.6 cm stores a potential energy of 0.053 j. what is the spring constant of this spring?
Answers: 1
The density of dry air at 20 degrees celsius is 1.20 g/L. What is the mass of air, in kilograms, of...
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