A radio active material has a half-life of 10hrs. What fraction of the original radio active nuclei will remain after 30hrs?​

wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves.

no

sodium is solid at rt

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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d. platinum would have the greatest temperature increase because it has the lowest specific heat.