Please help One way that a gas can be identified is by determining the speed of sound through it. In Earth's atmosphere at sea level and at room temperature, a sound wave of frequency 440 Hz has a wavelength of 0.782
meters. What is the speed of sound through this air? *
172 m/s
281 m/s
344 m/s
563 m/s

True or false graphs must include scales that increase by the same amount

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?