The frequency of a wave is just the reciprocal of the period.For this one . . .
Frequency = 1/(period) = 1/(5 sec) = 0.2 per sec (0.2 Hz) .
It represents the depolarization of the atria.
<u>Explanation:</u>
The P wave speaks to the depolarization of the left and right chamber and furthermore relates to atrial compression. Carefully, the atria contract a brief moment after the P wave starts. Since it is so little, atrial repolarization is typically not unmistakable on ECG.
In an ordinary ECG, there's three particular waves. The primary wave is the P wave, which speaks to the depolarization of the atria. This happens directly before the atria agreement and drive blood into the ventricles. The following wave is known as the QRS wave.
Since displacement is a vector quantity, it depends on direction as well as magnitude.
Taking displacement towards east as positive and towards west as negative,
Total displacement = 1200 + (-760) = 440 meters.
Since distance is a scalar quantity, it depends only upon magnitude.
Total distance = 1200 + 760 = 1960 meters.
Hope this cleared your doubt, feel free to ask any questions regarding this and have a nice day ahead! :)
The mass of water is 0.139 kg
Explanation:
The density of a substance is given by the equation
where
is the density
m is the mass of the substance
V is its volume
In this problem we have:
V = 139 mL is the volume of water
The density of water is:
Solving the equation for m, we find its mass:
And converting into kilograms,
Learn more about mass and density:
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Amount of charge on the capacitor=q=10⁻³C
Energy stored=4.5x10⁻³ J
potential difference= 9 V
Energy stored= E= 1/2 q V
4.5x10⁻³ =1/2 q (9)
q=10⁻³C
Thus the amount of charge on the capacitor=q=10⁻³C
