Americium-241 is an alpha-emitting isotope with a half-life of 432 years which is commonly used in smoke detectors. Calculate the fraction of americium-241 that will be remaining in a Smoke detector 1,296 years after its production IF YOU ANSWER THIS QUESTION YOU GET 15 POINTS PLEASE HELP ME IM BAD AT PHYSICS

ammonium chloride & tallow

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.