A text-book of physics, largely experimental. On the Harvard college "Descriptive list of elementary physical experiments." (1891)
Hall, Edwin Herbert, 1855-1938, Bergen, Joseph Y. (Joseph Young), 1851-1917 · New York, H. Holt and Company · leaf 299
M2, M/, M2, but the rela-tive momenta, MJc, M2k, M/fc, and M2k, k being thesame quantity throughout, we can tell whetherMomentum before. Momentum after. Mi+M2 = Mt + MJ,even when we do not know the value of k. For if … it must be that EXPERIMENT.(Preliminary to Exercise 37.) Apparatus: Two simple pendulums withsuspensions of equal length, the longer thebetter. Wooden blocks to be struck by thependulum-balls at any chosen points of theirpaths. A meter-rod. Suspend the pendulums so that there shall beabout 4 cm. of…
Physics
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