in terms of the wavelength of the sound wave, how far apart are the first two resonant positions in the resonance tube?

In a class of 20 students, what democratic form of governance makes the most sense

Will give brainliest asaap plz im in a major hurry to finish which of these pairs of objects exerts the greatest gravitational force on each other? object 1 and object 3 object 4 and object 3 object 1 and object 4 object 4 and object 2

In africa what do they call a crop grown for direct sale and not for use?