Answer:
The half life of an isotope is the time that an element take to reduce the half of the mass.
Explanation:
So for example,in the case of carbon 14, one gram takes 5730 years to reduce to 0.5 g, and then, it takes another 5730 years to be reduced to 0.250 g and so and so.
So depending the mass of the sample that you have, for example, a bone that weights 15 g, it will take 5730 years to have a mass of 7.5 g, and then 11, 460 years to have a mass of 3.75 g, and then 17,190 years to have a mass of 1.875 g, and so, and so.
Hope this info is useful.
Answer:
He basically explains like what they do in Uruguay when new year arrives
I love you in spanish is te amo
Answer:
The statements we have to rewrite are:
Está prohibido fumar - Se prohíbe fumar
Vendemos periódicos - Se venden periódicos
Hablamos español - Se habla Español
Necesitamos enfermeras - Se necesitan enfermeras
No debes nadar - No se debe nadar
Estamos buscando un auto usado - Se busca un auto usado
Explanation:
Impersonal constructions with "<em>se</em>" don’t reference a specific person, but are used to make general observations about what people do. In impersonal statements there is no obvious grammatical subject, which is what makes them impersonal. In impersonal "<em>se</em>" constructions, verbs are always conjugated in the third person singular. You can use impersonal expressions to talk about how things are done according to custom, rule, or general consensus.
Cuando llueve,
traigo una sombrilla.
Corre, que ya oigo la lluvia
Cuando hace sol,
salgo afuera a jugar.
Cuando hace viento,
me pongo un abrigo (Abrigo does not count in this line)
Ay! Cuanto frio.
Cuando esta nublado,
tengo ganas de dormir.
This is a very poor poem to be honest but it includes the weather expressions and ithas the 5 -go verbs you need
