¿Cuál sería el valor de la constante efectiva si los resortes del problema anterior estuvieran sosteniendo un peso, pero conectados en paralelo al mismo?

Aphids are tiny insects that feed on plants. ladybugs are to plants because they eat aphids. which type of organism are aphids in this scenario? co decomposers predators prey producers

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?