what is the relationship between period and frequency? Explain and write the equations to support your answer?

Aforce of 240.0 n causes an object to accelerate at 3.2 m/s2. what is the mass of the object?

When does your body conduct current more readily?

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