The statements below are all true. Some of them represent important reasons why the giant impact hypothesis for the Moon’s formation is taken seriously, and some of them are not relevant to deciding between this and other hypotheses. Sort the statements into the correct bin according to whether or not they provide important support to the giant impact hypothesis. a) models indicate early solar system had mars-size leftover panetesimals. b) moon's composition is similar to earth's mantle. c) moon has a low proportion of easily vaporized ingredients. d) moon lacks active volcanoes. e) moon's distance is gradually increasing. f) moon has synchronous rotation.

The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=0∘ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=30∘ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=45∘ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=60∘ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=90∘ with the plane of polarization?

Ineed the answer to question 1 , i’m desperate

Explain why electric current cannot exist if a current doesn't have a voltage source.