gamma radiation is both a type of nuclear radiation and electromagnetic radiation.
Radiation has both electric and magnetic fields and travels in waves. It comes from natural and man-made sources. The intensity of electromagnetic radiation varies from low energy to high energy. There are radio waves, microwaves, infrared rays, visible rays, ultraviolet rays, X-rays, and gamma rays.
Electromagnetic radiation consists of an electric field (E) of varying strength perpendicular to the direction of propagation of the radiation and a magnetic field (M) perpendicular to the electric field. Both fields move at the speed of light (c).
Electromagnetic radiation occurs when atoms absorb energy. The absorbed energy causes one or more electrons to change positions within the atom. Electromagnetic waves are generated when electrons return to their original positions.
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Answer:The assessments best suited to guide improvements in student learning are the quizzes, tests, writing assignments, and other assessments that teachers administer on a regular basis in their classrooms. Teachers trust the results from these assessments because of their direct relation to classroom instructional goals.
Explanation:do your best!
Probably, some of the votes would not be well-informed, as you can't rightly expect toddlers to know about current political issues and politics in general. Also, without citizenship status, some could vote for a president that would benefit their country and not see the bigger picture.
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Answer:
The physical geography around China affected Chinese civilization by creating barriers to the outside world. In the zone of Central China, the Yangtze River, and the Yellow River represented a good source of fresh water, water for fertile soil and farming, and means of transportation of people and products.
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Answer:
The peoples who most recently inhabited the coast of South Texas were the Coahuiltecans and the Karankawas. Both were groups of interrelated nomadic hunter-gatherer bands that roamed the coast and inland for some distance.
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