## Constructive Text-book of Practical Mathematics, Volume 2 |

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addition angle Apply base binomial body called changed characteristic coefficient column common Compute cube root decimal denominator denotes determined diameter difference direct directly distance Divide division divisor effected eliminate enter equals equation Examples expansion exponent expression factor feet figures Find force formula four fraction gage-point given gives graduation gravity greater Illustration inches indicated integral figures inversely length less letter logarithm loss mantissa mathematics means method minus Move Multiply negative Observe obtained operation paragraph positive pounds preceding pressure problem proportion quantity quotient radical radius ratio reduced resistance result root rule runner scale setting showing shown sine slide slide-rule solution Solve specific square square root substitute subtraction tangent temperature unit unknown varies velocity volume weight work-book Write written zero

### Popular passages

Page 83 - It has been found by experiment that the weight of a body varies inversely as the square of its distance from the center of the earth. If a...

Page 219 - The logarithm of a number is the exponent of the power to which it is necessary to raise a fixed number, in order to produce the first number.

Page 29 - The hypotenuse of a right triangle is the side opposite the right angle. The sides including the right angle are sometimes called the arms of the right triangle.

Page 298 - The characteristic of a number less than 1 is found by subtracting from 9 the number of ciphers between the decimal point and the first significant digit, and writing — 10 after the result.

Page 81 - The velocity of a falling body varies as the time during which it has fallen from rest. If the velocity of a falling body...

Page 87 - It has been found by experiment that the distance a body falls from rest varies as the square of the time.

Page 45 - P = mean effective pressure in pounds per square inch; L = length of stroke in feet; A =area of piston in square inches; N = number of strokes per minute = revolutions per minute x 2.

Page 83 - The Volume of a Gas. The volume of a gas varies inversely as the height of the mercury in the barometer.

Page 242 - The logarithm of a fraction is equal to the difference obtained by subtracting the logarithm of the denominator from the logarithm of the numerator : log (os/6) = log a — log b. For, if 10' = a and 10£ •= b, then IQI-L — a _}.

Page 100 - Glasgow had already discovered in 1830 his "law of gaseous diffusion" ( the relative rates of diffusion of gases are inversely proportional to the square roots of the densities) when he began his work on the phosphoric acids.