Is the founder of operant conditioning. mary cover jones john watson b. f. skinner ivan pavlov

Asher cycles 12 miles in 16 hours. what is his speed?

Blank liquids and gases exert a buoyant force on objects placed in them

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?