there were also ambiguous quetions like one that asked for the name of the effect that causes people to be able to hear each other if a wall was splitting them apart and I wrote refraction because the wall will always absorb the waves and re emit them at the same frequency, the answer was difraction but that becomes negligible if the wall is large enough, refraction isn't negligible no mater the size of the wall unless it's really fucking thick
>>13255795I know that's on me, I should've looked up if blood vessels could expand and contract when the heart pumped more blood, I thought that was regulated by hormones. But then again, so is the heart rate.
