hadarmo2

When the stomach gets the food and start to digest it satiety hormones are been secreted thus telling us to stop eating correct? food stays in the stomach itself for about 3 to 4 hours which is the average time of satiety. when the food leaves the stomach it becomes chyme and goes to the small intestine . when the stomach is empty-meanning there is no food there,ghrelin is been produced ,telling us to start eating again. What i dont get is,the food leaves as chyme to the small intestine and emptying the stomach,but when that chyme goes into the small intestine hormones of satiety are been secreted as well there,telling us not to eat,but that contradicts the fact that when that chyme leaves the stomach we begin to feel hungry again ,so what am i missing? thank you

Hi, I am confused about what happens dring the impulse moment in collision between to objects-if a man is standing and the car hits him,does this mean it is an inelastic collision? and a part of the car's kinetic energy is transferred to the man?what is the difference though, between an iron man falling towards a concrete ground? does that mean that his kinetic energy is conserved from with in? and what exactly does this mean? Thanks