The diagram below shows a periodic wave. Which two points on the wave are 180 degrees out of phase? Please explain as well, thanks so much

if you answer my question i will answer yours

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energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19