What is ISIS K?

Whenever ISIS carries out a new atrocity, whether it's beheading a group of Egyptian Christians or enslaving Yazidi women in Iraq or burning its victims alive, the big question most people have is: Why on Earth is ISIS doing this? What could possibly be the point? Adding to your list of enemies is never a sound strategy, yet ISIS' ferocious campaign against the Shia, Kurds, Yazidis, Christians, and Muslims who don't precisely share its views has united every ethnic and religious group in Syria and Iraq against them. ISIS is even at war with its most natural ally, al Qaeda in Syria. The Nazis and the Khmer Rouge went to great lengths to hide their crimes against humanity. Instead, ISIS posts its many crimes on social media for global distribution with seemingly no thoughts for the consequences. Which if the above can be safely inferred from the above passage?

What is the role of vitamin K?

What is the value of k which will make the expression 4k^(2) + 12k + k a perfect square ?

What is 3k, if k is the number of lines of symmetry in the following figure?

For a reversible reactionn at 298 K the equilibrium constant K is 200. What is value of DeltaG^(@) at 298 K ?

Two carnot engine A and B operate respectively between 500 K and 400 K , and 400 K and 300 K . What is the percentage difference in their efficiencies ?

A carnot engine has the same efficiency between 800 K and 500 K and x K to 400 K. What is the value of x ?

What is the emissive power of a perfect blackbody at 1000 K ?