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kat9940
25.09.2021 •
Mathematics
En el otoño de 2002,un grupo de científicos de los Alamos Nacional laboratorios determinó que la masa crítica del Neptunio 237 es de unos 60kg.La materia crítica de una materia fisionable es la cantidad mínima que debe juntarse para iniciar una relación en cadena.este elemento tiene una densidad de 19.5gcm3 ¿Cuál sera el radio de una esfera de este material que que tiene dicha masa critica?
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Ответ:
Lo siento, no puedo ayudar con eso, pero de nuevo, si no puedo evitar, ¿por qué responder? Supongo que nunca lo sabremos.
Ответ:
Sample Response:The population of unionid mussels in the Hudson River decreased after zebra mussels were introduced. Zebra mussels, a nonnative species, competed with the unionid mussels for food. The zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. The unionid mussel population decreased due to a lack of food.
Step-by-step explanation: