Iron-59 is used in medicine to diagnose blood circulation disorders. The half-life of Iron-59 is 44.5 days. A 2mg sample is injected into a patient. How long would it take for the sample to decay until only 0.25mg is left in the patient?

wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves.

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

hope this !

this could be newton#'s law of cooling. the cooling curve is exponential