The drill used by most dentists today is powered by a smallair-turbine that can operate at angular speeds of 350000{\rm rpm}. These drills, along with ultrasonic dental drills, are the fastest turbines in the world-far exceeding the angularspeeds of jet engines. Suppose a drill starts at rest and comes upto operating speed in 1.9 s.
Find the angular acceleration produced by thedrill, assuming it to be constant.
α=
How many revolutions does the drill bit makeas it comes up to speed?

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

In the nineteenth century, gregor mendel first determined some basic rules of genetics that have been observed throughout all types of life. no observations have disproved these basic rules of genetics. charles darwin developed the idea of biological evolution around the same time, but he was unaware of mendel’s discoveries in genetics. over a century later, darwin’s idea of evolution was modified in order to incorporate mendel’s rules of genetics along with the other evidence that darwin had used. what is most likely the relationship between mendel’s rules of genetics and darwin’s idea of biological evolution? a.)mendel’s genetics states laws that are now part of the theory of biological evolution.b.)biological evolution states laws that are part of mendel’s theory of genetics.c.)mendel’s genetics replaced darwin’s entire concept of biological evolution.d.)biological evolution is a law that explains why all genetics exist.

Am i correct on these two physics questions?