Answer:
On April 21, the altitude of Polaris, as viewed from a location in New York State, was measured as 41.3°.
Explanation:
<span> Light waves are a wave in the electromagnetic field, this field may exist in a vacuum. Sound needs either solid, liquid, or gas to propagate and therefore it is called a mechanical wave. Sound is a form of energy which is transferred by vibrating air molecules if motions of propagation is air.</span>
3,01 x 10.000.000.000.000.000.000.000=
=30.100.000.000.000.000.000.000
