The source of electromagnetic waves is .
vibrating atoms
magnetic fields
el...
Physics, 15.06.2021 21:10 amyaacrawford86
The source of electromagnetic waves is .
vibrating atoms
magnetic fields
electric fields
vibrating electric charges
Answers: 3
Physics, 22.06.2019 05:40
Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.
Answers: 3
Physics, 22.06.2019 13:00
What effects result when there is an impact between earth and an asteroid? check all that apply. a.massive flooding. b.extinction of many life forms.c.major earthquakes change in average global temperature.d. giant dust cloud
Answers: 3
Physics, 22.06.2019 15:20
Acarpenter builds an exterior house wall with a layer of wood 2.9 cm thick on the outside and a layer of styrofoam insulation 2.3 cm thick on the inside wall surface. the wood has k=0.080w/(m⋅k), and the styrofoam has k= 0.010 w/(m⋅k). the interior surface temperature is 19.0 ∘c , and the exterior surface temperature is -15.0 ∘c . a.)what is the temperature at the plane where the wood meets the styrofoam? celsius b.)what is the rate of heat flow per square meter through this wall? /m^2
Answers: 2
Physics, 22.06.2019 15:30
What are the north and south poles of a solenoid change with?
Answers: 1
History, 23.10.2020 05:01
Mathematics, 23.10.2020 05:01
Mathematics, 23.10.2020 05:01
Mathematics, 23.10.2020 05:01
Mathematics, 23.10.2020 05:01
Social Studies, 23.10.2020 05:01
History, 23.10.2020 05:01
Mathematics, 23.10.2020 05:01
History, 23.10.2020 05:01
Chemistry, 23.10.2020 05:01
History, 23.10.2020 05:01
Mathematics, 23.10.2020 05:01
Mathematics, 23.10.2020 05:01
History, 23.10.2020 05:01