To be deductible, a business expense must be both ordinary and necessary. An ordinary expense is one that is common and accepted in your trade or business. A necessary expense is one that is helpful and appropriate for your trade or business. An expense does not have to be indispensable to be considered necessary. It is important to separate business expenses from the following expenses:
A duple meter metronome that is useful for 2/4, 2/8, 2/2 (cut time), and 6/8 when it has two beats per measure.
Question: 1. How many nanometers are there in one meter? The answer has units [nm/m]. - 106 - 10-6 - 103 - ... 1. How many nanometers are there in one meter? The answer has units [nm/m]. - 106 - 10-6 - 103 - 10-3 - 10-9 - 109 - 103/109 - 109/103. 2. What does ? represent in this experiment? - wavelength - speed of light - Period (T) - da'... ? = da' baby sheep - frequency (f) - wave speed. 3. The purpose of the Laser Diffraction lab is to: - measure the spacing between the slits