subject
Physics, 18.04.2020 00:03 Alex9089435028

Convection currents in air and water occur because _
warm fluids are less dense than cold fluids
the molecules of warm fluids bump into the molecules of cold fluids
und 5 s
CD-
cold fluids are less dense than warm fluids
electromagnetic waves move the air or water

ansver
Answers: 1

Another question on Physics

question
Physics, 20.06.2019 18:04
If you want to change the pitch of a sound, you have to change the
Answers: 1
question
Physics, 22.06.2019 08:30
Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.
Answers: 3
question
Physics, 22.06.2019 16:50
Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.
Answers: 1
question
Physics, 22.06.2019 23:00
Acommon technique in analysis of scientific data is normalization. the purpose of normalizing data is to eliminate irrelevant constants that can obscure the salient features of the data. the goal of this experiment is to test the hypothesis that the flux of light decreases as the square of the distance from the source. in this case, the absolute value of the voltage measured by the photometer is irrelevant; only the relative value conveys useful information. suppose that in part 2.2.2 of the experiment, students obtain a signal value of 162 mv at a distance of 4 cm and a value of 86 mv at a distance of 5.7 cm. normalize the students' data to the value obtained at 4 cm. (divide the signal value by 162.) then calculate the theoretically expected (normalized) value at 5.7 cm.
Answers: 2
You know the right answer?
Convection currents in air and water occur because _
warm fluids are less dense than cold flui...
Questions
question
Mathematics, 18.05.2021 16:50
question
Mathematics, 18.05.2021 16:50
question
Mathematics, 18.05.2021 16:50
question
Mathematics, 18.05.2021 16:50
Questions on the website: 13722367