Figure 7.18 shows a liquid-level system in which two tanks have cross-sectional areas A1 and A2, respectively. The volume flow rate into tank 1 is qi. A pump is connected to the bottom….
is Al Qaeda a band of bloodthirsty murderers?
I, like many of my fellow Muslims, was appalled by the latest bombing in Saudi Arabia (‘Among the Saudis, Attack Has Soured Qaeda Supporters,’ front page, Nov. 11). Yet I was disturbed to get the sense that Saudis were angered by this latest act of barbarity because the targets were mainly Arab and Muslim.
You quote one person as saying of the bombing in Riyadh in May, “At that time it was seen as justifiable because there was an invasion of a foreign country, there was frustration.” Another says, “Jihad is not against your own people.” Regardless of whether the victims are Muslim or not, the vicious murder of innocent human beings is reprehensible and repugnant, an affront to everything Islam stands for. Any sympathy for Al Qaeda among the minority of Saudis should have evaporated after the May bombings in Riyadh, and it should have surprised no one in Saudi Arabia that Al Qaeda would attack a housing complex full of Arabs and Muslims. That is what Al Qaeda is: a band of bloodthirsty murderers.—Letter to the editor, New York Times.