calculate the wave velocity of a wave traveling through air that has a frequency of 6 megahertz and a wavelength of 85.5 m​

Apassenger walks toward the rear of a moving train. describe her motion as seen from a reference point on the train. then describe it from a reference point on the ground

Apossible explanation for a set of facts that can be tested by further investigation is called

Work = force × a. work b. energy c. distance d. momentum