Answer:

Period of wave is defined by the time taken to complete one cycle of the wave i.e. from one crest to one trough.
Since, the period of the wave is already given in microseconds, we just have to convert into seconds.
we know

Therefore, the period of wave would be
.
It would take you approximately an hour and 15 mins
Both the speed and the direction of a wave could change
at the beginning and end of the medium, when the wave
crosses from one medium into a different one.
But while the wave is moving from one place to another place
in the same medium, its speed and direction don't change.
Answer:
Boyle's law
Explanation:
took the test a while back :)
QUESTION:
WHAT IS THE MAGNITUDE OF THE MAGNETIC FIELD AT RIGHT ANGLES TO THE PROTON'S PATH?
ANSWER:
=<em><u>☑</u></em><em><u> </u></em><em><u>2</u></em><em><u>.</u></em><em><u>4</u></em><em><u> </u></em><em><u>T</u></em>