The speed of the wave depends on what?
a. the properties of the medium through which the wave travels
b. the wavelength of the wave
c. the frequency of the wave
d. both the wavelength and frequency of the wave

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?

The dot diagram represents the motion of the motorcycle as it moves from left to right

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.