phys207hw1.sxw

86 g cm 3 500 10 6 cm 3 983 10 16 g 983 10 19 kg 101 b

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Unformatted text preview: 6 g cm 3 5.00 10 6 cm 3 9.83 10 16 g 9.83 10 19 kg (10.1) (b) Note the atomic mass unit is given in the front of the textbook: (10.1) u 1.660 10 27 kg u=1.660x10-27 kg. The number of atoms is given by the ratio of masses: m object m object 9.83 10 19 kg N 1.06 10 7 atoms 27 m mass unit 55.9 u 55.9 1.660 10 kg Prob 1.14) Using dimensional analysis means examining the units. First we note circumference is a measure of distance so it has dimensions of L . Then area has dimensions of L 2 and volume has dimensions of L 3 . Then we analyze the equations to see what dimensions they have. Now (i) has dimensions of L L 2 L 2 so it is the area so it is (b). N...
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