A sound wave in steel with a frequency of 500 Hz and a wavelength of 3.0 metres. What is its speed?

Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

What is driving behind plate tectonics (plate movment)? a) gravity only b) inertia c) convection and gravity d) the sun theres no option for science so i picked chemistry. plz

Identify and describe the three ways that mutations affect organisms.