For an unknown sample of the experiment, students measure 1603 counts when they first receive their sample and 1382 counts 4.5 minutes later. Calculate the half-life t1/2 of their sample.

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.

c

explanation:

plasma - state of matter made up of electrically charged particles