An investigator can collect hairs they observe visually (with tweezers or by hand), and they can also use clear tape to lift non-visible hair from a variety of surfaces, such as clothing. Other methods of hair sample collection include combing and clipping methods.
Answer:
Explanation:
Dipole moment = charge x separation of charges
= (2 x 1.6 x 10⁻¹⁹ ) x ( 140 x 10⁻¹² ) coulomb-metre
= 448 x 10⁻³¹coulomb-metre
1 debye = 3.33 x 10⁻³⁰coulomb-metre
Dipole moment in debye = 448 x10⁻³¹ / 3.33 x 10⁻³⁰debye
= 448 x10⁻³¹ / 33.3 x 10⁻³¹
= 13.45 debye
=
