Cobalt-62 is a radionuclide with a half life of 1.5 minutes. What fraction of an initial sample of cobalt-62 will remain after 6 minutes? Explain your
answer.

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line