Calendar: 1849-1850 Page 302
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300 APPLIED SCIENCES 12 Α Β Β Cy ami AC are three uniform beams of given unequal lengths and weights forming scalene roof the tie-beam Β being inclined at given angle to the horizon Determine by construction or otherwise the strain the tie-beam 13 Β CD is piece of board with one end AD cut oblique and placed on horizontal plane Ε The angle BCD is 45 Β is jf Β and determine the ratio Α Β ίο Β when the piece of board is just on the point of turning over at IV Cl cnu5t1p Exemplify what is meant by Chemical Affinity State the principal characteristics by which this power is distinguished How is Nitrogen obtained in state of purity Mention its characteristic properties Describe its compounds with Oxygen and Hydrogen
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