A 240 gram ball is initially moving at 8 meters per second east collides with a solid brick wall. After the collison, the ball is moving 7 meters per second west. If the force from the wall is 720 newtons, how long was the ball in contact with the wall? Claim:
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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

Difference between series and parallel circuits

Decreased sensitivity to an unchanging stimulus is known as