Light waves are traveling through glass. if the wavelength of some part of the light wave is 4 x 10^(-7) m and the frequency of that light is 5 x 10^(14) hz, what is the speed of light through the glass? 8 x 10^(-22) m/s 1.25 x 10^21 m/s 1 x 10^7 m/s 2 x 10^8 m/s

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)