What is the relationship between the magnetic field density and the distance from the surface of a magnet halfway between the poles?

Alivestock company reports that the mean weight of a group of young steers is 1100 pounds with a standard deviation of 93 pounds. based on the model n(1100,93) for the weights of steers, what percent of steers weigh a) over 1050 pounds? b) under 1300 pounds? c) between 1150 and 1250 pounds?

The softest and hardest minerals are: softest hardest

The built in flash in a compact camera is usally capable of giving correct exsposure for distance up to how many meters?