Answer:
<em><u>True:</u></em> because when u look thru a telescope you are making an observation
Explanation:
Roughly 13.8 billion years old according to science
Answer:
it will be 1/√2 of its original period.
Explanation:
<em>Anything</em> that's dropped through air is somewhat affected by air resistance. But, out of that list, the leaf and the balloon are the items that will be affected by air resistance enough so that you can plainly see it.
If you spend some time thinking about it, you can kind of understand why airplane wings and boat propellers are shaped more like leafs and balloons than like bricks and rocks.