Astronauts wear liquid cooled space suits to keep their body temperature moderate. one group of students used the same technology to design this model of a sportsman's shirt which transports cool fluid through pipes on it. an athletic shirt is shown with a pipeline stitched into it, the pipeline comes over one shoulder, down the chest and moves up and down the torso as it moves across the front of the body. the pipeline returns over the other shoulder to the back. based on the model, which of these conclusions is correct?

this allows people to make the best decision or pursue the best option. when alternatives are weighed using their advantages and disadvantages, the option whose disadvantages outweigh the advantages (based on a qualitative or quantitative analysis) are shunned while those whose advantages outweigh their disadvantages are pursued.  

a and b sometimes have a positive value

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation:

c) up is the direction the magnetic force is acting on the charge.