Question

Complete as lacunas com os pronomes SHE, IT ou THEY.

Let’s calculate the number of copper atoms in an old copper penny. Such a penny has a mass of about 3 g, and for this illustration we will assume ________ is 100% copper.

A baseball is thrown straight up with an initial speed of 19.6 m/sec. Assuming that it has a constant acceleration downward (due to gravity) of 9.8 m/sec, and that air resistance can be ignored, how many seconds does it take to get to a height at which _______ stops going up and starts coming down?

X-rays are electromagnetic radiation, and _________ travel at the speed of light just like radio waves.

Isotopes are atoms of the same element that have different masses because ________ have different numbers of neutrons (different mass numbers).

The author declares that __________ has no financial or personal relationship(s) which may have inappropriately influenced her in writing this article.

Beryllium, boron, and aluminum, in particular, tend to form compounds in which ________ are surrounded by fewer than eight electrons.

Answer 1

1) it
2) it
3) they
4) they
5) she
6) they