00:02
So in this problem, we have a pulse of 77 beats per minute.
00:09
And we are told that we pump 75 milliliters of blood per beat.
00:23
We're also given the density of blood as 1 ,060 kilograms per meter cubed.
00:31
And so the first part of our problem is asking us essentially, the volume of blood and body after one minute.
00:57
So now to do this, we'll have to do some unit conversions to solve for this volume.
01:04
So if we take the number of beats per minute, so we have 77 beats per minute, and we multiply it by how much blood we pump per beat, we pump 75 milliliters per beat.
01:27
And doing this calculation, we see that our beats cancel out, and get that we pump 5 ,775 milliliters of blood per minute.
01:43
So now if this is how much blood we pump in a minute, well, this is the amount of blood that we're going to have in the body.
01:53
And if we want to represent it in terms of our si units, we're going to multiply our 5 ,775 by 10 to negative 6.
02:07
And so this is our volume of the blood in both units of milliliters and meters cube...