rho g h two, this h 2 distinguishes it from h in part A. Us now have 1.50 meter because that the elevation now, minus press of the blood. I substituted the number one through a subscript b there to say the this is the blood pressure. Climate we plug in numbers, for this reason it's 1025 kilograms per cubic meter density, times 9.81 newtons every kilogram, time 1.5 meters, minus 1066.4 pascals i m sorry is eight millimeter of mercury converted into pascals, climate times pi, times 0.15 time ten come the minus 3 meters radius of the tube to the power four, separated by eight time the viscosity the 1.002 times ten come the minus 3 pascals seconds, times two and also a half times ten to the minus 2 meters length of the tube. This functions out to 0.111 cubic centimeters per 2nd after you transform this number i beg your pardon is in cubic meter per 2nd by multiplying by 100 centimeters because that every meter three times to acquire into systems of cubic centimeters per second. Part C, the circulation will reverse once the pressure because of the elevation of the column of the saline solution equals the blood pressure. Therefore we have actually rho g h because that reversal, subscript r to typical the elevation at which allude the flow can reverse, equates to blood pressure and also we resolve for h r by splitting both political parties by rho g. So the height for reversal of the IV will be 1066.4 pascals, divided by 1025 kilograms every cubic meter time 9.81 newtons per kilogram i beg your pardon is 0.106 meter which is 10.6 centimeters. Therefore that way if a patient to be to was standing up and the IV bag was much less than 10.6 centimeters over their arm, then the IV drip wouldn't get in their eight anymore. So this is the write-up it's usually on, part wheels here, and also here's the bag through the saline equipment in it and the hose linked to the needle in their arm. If this distance below is ever before less 보다 10.6 centimeters, prefer if castle lift your arm approximately their head say, then the IV drip won't job-related anymore.">


You are watching: An intravenous system is supplying saline solution

expose Answer

Why is this switch here? Quiz mode is a chance to try solving the problem an initial on her own before viewing the solution. Among the adhering to will more than likely happen: You gain the answer. Congratulations! that feels good! There could still be more to learn, and also you can enjoy compare your difficulty solving method to the ideal practices demonstrated in the solution video. Friend don"t gain the answer. This is OK! In truth it"s awesome, despite the complicated feelings you could have around it. When you don"t get the answer, your mind is prepared for learning. Think around how much you really want the solution! her mind will gobble it up as soon as it look at it. Attempting the difficulty is favor trying to assemble the pieces of a puzzle. If you don"t gain the answer, the gaps in the puzzle are inquiries that space ready and searching to it is in filled. This is an active process, wherein your mind is turned on - finding out will happen! If you great to show the answer instantly without having to click "Reveal Answer", friend may create a totally free account. Quiz mode is disabled through default, however you can inspect the allow Quiz setting checkbox when modifying your file to re-enable it any kind of time girlfriend want. University Physics Answers care a lot around academic integrity. Quiz setting is encourage to use the options in a way that is most helpful for your learning.


Calculator Screenshots


*

*

*

PreviousNext
Video Transcript
This is university Physics Answers with Shaun Dychko. The intravenous device for this patient has actually a hose through a radius the 0.15 millimeters, i m sorry is 0.15 times ten to the minus three meters, and the hose size is two and also a half centimeters. The blood push at the needle is eight millimeter of mercury i m sorry we transform into pascals. The viscosity that the stuff in the IV tube, is the viscosity the water which is 1.002 time ten to the minus three pascal seconds. So the pressure due to the height of the fluid when it"s 1.61 meters over the needle is the thickness of the systems inside, it"s a saline equipment so its thickness is 1025 kilograms per cubic meter, time 9.81 newtons per kilogram times the height between the pouch and the needle in the person"s arm. For this reason that"s 1.61 meters, in this case 1.62 times ten to four pascals. Component B asks because that what the rate of the fluid flow will be v a height of 1.50 meters instead of the height given to us in the example. So, the fluid circulation rate will certainly be the distinction in the pressures, this is the pressure as result of the elevation of the fluid and also this is walking to be the blood push that"s pushing ago on the fluid at the needle. So we take that push difference, multiply by pi time the radius the the IV pipe to the strength four, divided by eight times the viscosity that the saline solution, time the size of the tube. So, we have rho g h two, this h 2 distinguishes it from h in component A. We now have 1.50 meter for the height now, minus push of the blood. I substituted the number one with a subscript b over there to say that this is the blood pressure. Then we plugin numbers, so it"s 1025 kilograms every cubic meter density, times 9.81 newtons per kilogram, time 1.5 meters, minus 1066.4 pascals i beg your pardon is eight millimeter of mercury converted right into pascals, then times pi, time 0.15 times ten to the minus 3 meters radius the the pipe to the power four, divided by eight time the viscosity of 1.002 times ten to the minus 3 pascals seconds, times two and a half times ten to the minus 2 meters length of the tube. This works out come 0.111 cubic centimeters per 2nd after you transform this number i m sorry is in cubic meters per second by multiplying by 100 centimeters for every meter 3 times to obtain into units of cubic centimeters per second. Part C, the circulation will reverse once the pressure as result of the height of the shaft of the saline solution amounts to the blood pressure. For this reason we have rho g h because that reversal, subscript r to average the height at which allude the circulation can reverse, equates to blood pressure and we resolve for h r by separating both sides by rho g. For this reason the height for reversal of the IV will be 1066.4 pascals, separated by 1025 kilograms per cubic meter times 9.81 newtons per kilogram i beg your pardon is 0.106 meters which is 10.6 centimeters. For this reason that method if a patient to be to was standing up and also the IV bag was less than 10.6 centimeters above their arm, climate the IV drip wouldn"t get in their eight anymore. So this is the short article it"s normally on, part wheels here, and also here"s the bag v the saline solution in it and the hose connected to the needle in your arm. If this distance right here is ever less than 10.6 centimeters, choose if they lift your arm as much as their head say, then the IV drip won"t job-related anymore.
*

its really constantly the method you blow through a problem and also don"t define where your derivations come from
Hi camdenreed, yeah, i m really sorry if I remained in a sirloin on the one. I try to uncover a balance between explaining extensively vs. No wasting students" time with overly verbose explanations. Occasionally that more than likely errs on the next of as well concise. If girlfriend can kind a particular question, i usually try to get back to college student if time permits.

All the best,Shaun

*



See more: A Cup Of Poetry — In And Out Of Time By Maya Angelou, In And Out Of Time, By Maya Angelou

It to be my fault; I assumed a recognized equation was something friend derived. Sorry, finals have actually me stressing haha.