Проверьте все ли правильно что дописать what did his experiment consist of? what does becquevel carry out the experiment? what does found guries ? what particles emitter by radium ray ? where is the barium in the periodic table? what system is said to possess energy? how may be calculated wok? what factors energy of system depends? what is calculated by the formula work?

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stepazhdanov2

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What does такого не бывает what did find guries?

HaGiNg

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