1. A vertically hung spring has a spring constant of 150 newtons per meter. A 2.00-kilogram mass is suspended from the spring and allowed to come to rest.
a. Calculate the weight of the mass. [Show all work, including the equation and substitution
with units (2 pts)

With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90

The combining of light nuclei is called blank. blank as in not actually blank. you know what im tryin to say.

As microwave light travels through a liquid, it moves at a speed of 2.2 x 108 m/s. if the frequency of this light wave is 1.1 x 108 hz, what is the wavelength of this microwave?