A100-kg cannon at rest contains a 10-kg cannon ball.  when fired, the cannon ball leaves the cannon with a speed of 90 m/s.  what is the recoil speed of the cannon?

The specific heat of silver is 0.057 calories/gram°c. if 10.0 grams of silver were heated and the temperature of the sample changed by 20.0°c, how many calories of heat energy were absorbed by the sample?

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 process of predicting values that extend beyond the range of data points is called absolute value extrapolation interpolation prediction for any given: )