foreshadowing: what elements of the description of the caverns contribute to the mood of approaching danger?
1 answer:
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The rhythm identified by selecting the single best answer is; Sinus Bradycardia.
<h3>How to Identify the Heart Rhythm?</h3>Looking at the image of the heart beat diagram, we can say that the rhythm identified by selecting the single best answer is Sinus Bradycardia.
Sinus bradycardia is a heart rhythm where your heart beats slower than expected (under 60 beats per minute for adults) but otherwise works normally. It's fairly common, especially in adults over 65 and those who exercise regularly. It's usually not serious unless you have symptoms.
Sinus bradycardia is a type of slow heartbeat. A special group of cells begin the signal to start your heartbeat. These cells are in the sinoatrial (SA) node. Normally, the SA node fires the signal at about 60 to 100 times per minute at rest. In sinus bradycardia, the node fires less than 60 times per minute.
Read more about Heart beat Rhythm at; brainly.com/question/4581254
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The answer can be obtained using a calculator.
It corresponds to a notable identity
sin (45) = / 2
sin (45) = 0.7071
/ 2 = 0.7071
The velocity of an object in free fall increases downwards with time
- Please find attached the correct graph showing velocity as a function time, with the positive direction to be upwards.
Reason:
The known parameters are;
Location where the rocks are released; Earth
The time at which rock Y is released = A few seconds after rock X is released.
Required:
To select the graph that shows the vertical velocity of rock, <em>x</em>, as a function of time.
Solution:
Let <em>t </em>represent the time after which rock x are released, with the positive direction being upwards, we have;
- The equation for the velocity of x is v = -9.81·t
With the above equation, the graph of the vertical velocity of rock x is plotted with MS Excel.
Learn more about the graphs of velocity of object in free fall here:
