Final answer:
The real part of the complex number -13+6i is -13, and the imaginary part is 6. Complex numbers are important in fields like physics for making real predictions from complex wave functions.
Step-by-step explanation:
The real part and imaginary part of a complex number are the components of the number without the imaginary unit 'i' and with the imaginary unit 'i', respectively. In the complex number -13+6i, the real part is -13 and the imaginary part is 6. Complex numbers are used in various fields including physics, where they play a crucial role in quantum mechanics. For instance, the complex conjugate of a wave function eliminates complex numbers in predictions due to the product of a function and its complex conjugate being always real.