We have inward pressure to balance outward pressure .
At every point of the body the atmosphere pressure is
P=1.01×10^5 Pa=1.01×10^5 N/m^2
We know that
Force =F=PA . Here A=1.8m^2
F=1.01×10^5 ×1.8
F=1.818 ×10^5 N Answer.
If a human body has a total surface area of 1.8 m', what is the total...
The human body has a surface area of approximately 1.8 m^2, a surface temperature of approximately 30 degrees celsius , and a typical emissivity at infrared wavelengths of e = 0.97.If we make the approximation that all photons are emitted at the wavelength of peak intensity, how many photons per second does the body emit?
The total surface area of the human body is 1.20 m2 and the surface temperature is 30∘C=303∘K. If the surroundings are at a temperature of 6.0 ∘C , what is the net rate of heat loss from the body by radiation? The emissivity of the body is very close to unity, irrespective of skin pigmentation. Express your answer using two significant figures.
Please show all work!!!
Question 17 O pts 1) The surface area of the human body is about 1.8 m. If an average 37.0"C human is surfing in 10.0°C seawater in a 3.0 mm (1 milli- 10 thick neoprene wetsuit with a thermal conductivity of 0.050 W/(mK), how much heat does the surfer lose to the ocean in 1 hour? [1 hr = 3600 s) A lake has a specific heat of 4186J/kg.k). If we transferred 1.70x1094 J of heat...
A 4.5 m long rod has a mass of 2.8 kg and is stretched 0.21 m by force. What is the strain on the rod? Select one: a) 21.43 b) 0.047 c) 0.13 d) 6.1 Assuming atmospheric pressure to be 1.01 x 105 Pa and the density of sea water to be 1025 kg/m3 , What is the absolute pressure at a depth of 15.0 m below the surface of the ocean? Select one: a. 1.508 x 105 Pa b....
What is the total force in pounds on the top surface of a box that has been evacuated (perfect vacuum inside), if the top surface is 10inches wide by 20inches long? At sea level? At 50,000ft altitude?
Given human body core temperature=37C, skin surface temperature=33C, surface area of body=1.5m^2, and average thickness=1.0cm. Thermal conductivity is 0.2J/(s*m*degree). If one takes into account heat conduction through the skin as the only mechanism for energy dissipation from the body how long would it take to dissipate all the energy contained in a food consisting of 140 Calories?
If you dive to 15 m below the surface of a lake, what is the pressure due to the water alone? Assume that the density of water is 1000 kg/m3; g = 9.8 m/s2; and PATM = 1.01 x 105 Pa.
What is the absolute pressure at a depth of 9.77 m below the surface of a deep lake? Assume atmospheric pressure is 1.01 x 10° Pa. absolute pressure:
) The back of a frog has a surface area of 0.0052 m2. If the frog is on land at sea level, how much force will the frog’s back feel from air? The frog swims to a depth of 0.45 m in freshwater. What is the total pressure (from air + water) that the frog will feel on its back at that depth? If the frog instead was swimming in saltwater, which has a density of 1025 kg/m3, what depth...
A python can detect thermal radiation with intensity greater than 0.60 W/m2. A typical human body has a surface area of 1.8 m2, a surface temperature of 30∘C, and an emissivity e = 0.97 at infrared wavelengths. What is the maximum distance from which a python can detect your presence? You can model the human body as a point source of radiation.