Question

In: Physics

Titanic: A passenger jumped into the freezing water of temperature -2ºC (2ºC below zero). The person...

Titanic: A passenger jumped into the freezing water of temperature -2ºC (2ºC below zero). The person was wearing 3 layers of clothes with the combined thickness of 1 cm, and the clothes’ emissivity was 0.87. The person’s mass was 65 kg, surface area was 1.75 m^2 , and the body’s specific heat was 3500 J/kgºC. Assume that the skin temperature of the person was always constant at 13ºC. The thermal conductivity of the water is 0.6 W/mK, and the Stefan-Boltzmann constant is ?? = 5.67 × 10−8 W/(m^2)(K^4). If the person’s body core temperature was dropped from the initial 36ºC to 20ºC in exactly 45 minutes, what was the heat generation rate of the person during those 45 minutes in the water? Assume that the body’s heat generation rate was constant for those 45 minutes, and consider only two heat loss mechanisms: the thermal radiation heat loss and conduction-convection heat loss.

Solutions

Expert Solution


Related Solutions

Using the Titanic passenger dataset (titanic.csv). Is it better to split on gender or Pclass (1...
Using the Titanic passenger dataset (titanic.csv). Is it better to split on gender or Pclass (1 or not 1)? Compute information gain for each option and say which is best. Submit the gain and show your work and your choice. - I cant upload the dataset on here. Can I send a link of it from google? What can I do?
Question 2: “The RMS Titanic was an Olympic-class passenger liner, launched for the first time in...
Question 2: “The RMS Titanic was an Olympic-class passenger liner, launched for the first time in 31 May 1911. The ship’s steel was “probably the best plain carbon ship plate of the time”. Nevertheless, shortly before midnight on 14 April 1912, four days into the ship’s maiden voyage, Titanic hit an iceberg. The impact caused the hull to fracture and water poured into the ship, sinking it two hours and forty minutes later. Of the 2223 people on board, only...
Can water stay liquid below zero degrees Celsius?
Please elaborate more and make it in a paragraph form. Do not just copy and paste from the internet.
Consider the Titanic data stored in a structure variable named T. Passenger ID Survived 1=Yes, 2=No...
Consider the Titanic data stored in a structure variable named T. Passenger ID Survived 1=Yes, 2=No Gender 1=Male, 2=Female Age Fare ($) T = 121 2 1 22 7.25 243 1 2 38 71.28 432 1 2 26 7.93 564 1 2 35 53.1 856 2 1 35 8.05 As a table of 6 students, complete the following – you may want to have a couple of students checking the syntax and output on MATLAB. 1. Draw the table (Titanic...
Would you have affected the freezing point of water as much as you affected the freezing...
Would you have affected the freezing point of water as much as you affected the freezing point of benzene? Explain using the Df for each solvent as part of your explanation.
When the air temperature is below 0 ?C, the water at the surface of a lake...
When the air temperature is below 0 ?C, the water at the surface of a lake freezes to form a sheet of ice. If the upper surface of an ice sheet 24.64cm thick is at -10.58?C and the bottom surface is at 0 ?C, calculate the time it will take to add 2.41mm to the thickness of this sheet.
Select a subsystem in the passenger car, and explain why the temperature has to be sensed
Select a subsystem in the passenger car, and explain why the temperature has to be sensed
If we want to only use frozen water (ice) and room temperature water (room temperature water...
If we want to only use frozen water (ice) and room temperature water (room temperature water of four times the mass of the ice), write out the various forms of heat transfer that will occur between frozen water and room temperature water, when the come into contact. Hint: There will be one term of heat transfer from the room temperature water, and three terms of heat transfer in the ice/cold water.
TRUE OR FALSE *freezing water is possible only if the entropy of the surroundings increases ·...
TRUE OR FALSE *freezing water is possible only if the entropy of the surroundings increases · Liquid water has a lower entropy than liquid benzene at 25°C because of hydrogen bonding in water. · Ice at 0°C has a higher entropy than liquid water at 0°C because the density of ice is lower than the density of water. · It is impossible to freeze ethanol because the change in entropy of the system is negative. · Binding a substrate to...
If you know that a sample of KI in water has a freezing point of -3.2C,...
If you know that a sample of KI in water has a freezing point of -3.2C, what is the mass % of KI? What is the mole fraction of KI?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT