40 K would probably mean 40 kilometers (or 25 miles), which is almost the distance of a marathon.
At 15 km/hour you will have run 10km in 40 minutes.
√(40)=k√(10) Isolate k by dividing both sides by √(10) √(40)/√(10)=k √(40/10)=k √(4)=k k=2
No, AR-40 cannot change back to K-40. Ar-40 is a stable isotope of Argon, while K-40 is a radioactive isotope of Potassium. Ar-40 is formed from the decay of K-40, but once it is formed, it will not transform back into K-40.
They are members of the set of numbers of the form 40*k where k is an integer.
It is a fraction of the form (40*k)/(56*k) where k is any non-zero integer or a common factor of 40 and 56.
4 k
The atomic number of potassium is 19. So there are 19 protons, 19 electrons. In K-40 isotope, there are 21 neutrons.
He would have run 40 yards
The player has run 40 yards.
233 k, -40 C
To find K, you would just multiply 40 by 2 to get 80. Therefore 80/2=40.
For any non-zero integer k, the fraction (24*k)/(40*k) is equivalent.