Which of these statements is true regarding the use of testimony on hair samples in courts today? hair samples are replacing dna as an easily available, go-to source for identifying suspects. modern changes in the discipline mean that any police officer can provide testimony on hair samples. hair samples are necessary for most convictions. there's solid research that should lead us to be skeptical of testimony based on hair samples.

What is an example of a physical property?

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.