Which equations represent the relationship between wavelength and frequency for a sound wave check all that apply?

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87

The air in an automobile tire with a volume of 2.60 ft3 is at 70°f and 21 psig. determine the amount of air that must be added to raise the pressure to the recommended value of 30 psig. assume the atmospheric pressure to be 14.6 psia and the temperature and the volume to remain constant. the gas constant of air is ru = 53.34ft⋅lbflbm⋅r(1 psia144 lbf/ft2) = 0.3704 psia⋅ft3lbm⋅r the amount of air that must be added to raise the pressure is lbm