Predict how jewelers detectives antique dealers or other scientists could use electromagnetic waves to determine the composition of unknown materials in the course of their jobs

Answer with Explanation:

Every chemical element has an "emission spectrum" that is unique from the other. This spectrum consists of electromagnetic waves of varying wavelengths. The differences in wavelengths is brought about by electron transitions. These transitions produce different energy levels.

In order to know the elements that comprise a particular composition, the "spectroscopy" comes into play.

With the information said above, it is now clear how jeweler detectives, antique dealers or scientists use the electromagnetic waves in determining the composition of unknown materials.

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods