Answer:
O2 affinity depends on the pCO2 and pH.
Higher pH -> Higher O2 affinity -> Higher O2 saturation at higher pH level
Higher pCO2 -> Lower O2 affinity -> Higher O2 saturation at lower pCO2 level
This is a benefit because it allows the affinity of Hb in venous blood conditions (lower pO2, higher pCO2, and lower pH) to be much lower than in arterial conditions. Therefore, when blood goes from arterial to venous, the oxygen concentration decreases much more dramatically due to more oxygen (around 2x) being released to the tissues, which is possible due to the changes in affinity caused by the Bohr effect.
Explanation:
please give brainliest
Answer:
For example, the U.S. Census Bureau defines a family in the following manner: "A family is a group of two people or more (one of whom is the householder) related by birth, marriage, or adoption and residing together."
Explanation:
Loud sounds would cause the ossicles to move too much, which would cause damage to the inner ear.
Prepositional phrases express position and relation in space and time and begin with a preposition. The only prepositional phrases here are 1) "in the house," 2) "through the tunnel," and 3) "in 45 minutes." So, whichever of these are underlined in the problem, the corresponding sentences are the answers. Hope that helps!
Answer:
A) Cm = 2.232 s/mm²
B) Time taken to solidify = 74.3 seconds
Explanation:
(A) Since a side is 50mm and all sides of a cube are equal, thus, Volume of the cube is;V = 50 x 50 x 50 = 125,000 mm³
There are 6 faces of the cube, thus Surface Area A = 6 x (50 x 50) = 15,000 mm²
So, Volume/Area = (V/A) = 125,000/15,000 = 8.333 mm
Cm is given by the formula; Cm =[Tts] /(V/A)² where Tts is time taken to solidify and it's 155 seconds in the question. Thus;
Cm = 155/(8.333)²= 2.232 s/mm²
(B) For;Cylindrical casting with D = 30 mm and L = 50 mm.;
Volume of cylinder is;
V = (πD²L) /4
So,V = (π x 30² x 50)/4 = 35,343mm³
Surface area of cylinder is;
A = (2πD²)/4 + (πDL)
Thus, A = ((π x 30²)/2) + (π x 30 x 50) = 6126 mm²
Volume/Area is;
V/A = 35,343/6126 = 5.77 mm
Same alloy and mold type was hsed as in a above, thus, Cm is still 2.232 s/mm²
Since Cm =[Tts] /(V/A)²
Making Tts the subject, we have;
Tts =Cm x (V/A)²
Tts = 2.232 x (5.77)² = 74.3 seconds
