00:01
So in this problem, we want to find out how far deep we would have to dive in order to get a pressure gauge reading of zero pascals.
00:09
So what we're first going to do is we're first going to find the absolute pressure at this depth 10 meters below sea level.
00:17
And we can do that by taking the absolute pressure at sea level, which is 101 .3 kilopascals, the value that i will be using here.
00:29
And adding that the delta p from sea level to 10 meters below the water.
00:37
So we can rewrite delta p as the density times g times the depth.
00:46
And when we plug in for all the values that we know, keeping in mind that this is in kilopascals and this will be in pascals, we're going to get an absolute pressure of 199 kilopascals.
01:00
So now that we have the absolute pressure at this point underwater, you can find the absolute pressure in the tank by adding this absolute pressure that we just found to the pressure reading.
01:14
So the pa plus p, which is 75 that gives us an absolute pressure in the tank of 274 klo -pascals...