Answer: A crest is the highest point the medium rises to and a trough is the lowest point the medium sinks to. It is also a point on the wave where the displacement of the medium is at a maximum.
The mineral with Mohs hardness would be scratched because the mineral with Mohs 7 hardness is stronger than the Mohs 5 mineral. Eventually, that mineral would turn into dust if you kept rubbing it.
If it is the video I am thinking of then Yes
<h3><u>Answer;</u></h3>
The above statement is False
<h3><u>Explanation;</u></h3>
- Decreased output from the vasomotor center allows arterioles and veins to dilate.
- The vasomotor center controls vessel tone or contraction of the smooth muscle in the tunica media.It is responsible for central regulation of cardiac electrical activity, myocardial performance, and peripheral vascular tone.
- Changes in diameter affect peripheral resistance, pressure, and flow, which in turn affect cardiac output.
Since the process occurs at constant pressure, the work done by the gas on the piston is given by

where
W is the work
p is the pressure

is the final volume

is the initial volume
In our problem, we have



(where the negative sign means the work is done by the piston on the gas)
We can re-arrange the previous equation and use these values to find the pressure: