A 3. 7 kg object is accelerated from rest to a speed of 30. 8 m/s in 44 s. What average force was exerted on the object during this period of acceleration? answer in units of n.

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force

How to tell if a molecule is polar or nonpolar with electronegativity

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