Based on <u>the </u><u>norm</u><u> of </u><u>reciprocity</u>, you will feel obligated to do a favor for a coworker when he or she performs a large favor for you.
<h3>What is the norm of reciprocity?</h3>
The norm of reciprocity can be defined as a social convention requires that a person repay in kind a favor or assistance that was done to them, especially to the performer of such act.
Based on <u>the </u><u>norm</u><u> of </u><u>reciprocity</u>, we can infer and logically deduce that you will feel obligated to do a favor for a coworker when he or she performs a large favor for you.
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Answer :refers to gestures, facial expressions, tone of voice, eye contact (or lack thereof), body language, posture, and other ways people can communicate without using language.n move their heads less frequently (Schmidt). Furthermore, women are more inclined to express their emotion through their facial expressions and they smile more often.
Explanation: mark me brainliest
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
