Elementary Practical MathematicsMacmillan and Company, Limited, 1899 - 404 páginas |
Dentro del libro
Resultados 1-5 de 61
Página ix
... Force . Mass . Work . Power . Energy ( Potential and Kinetic ) . Angular Velocity . Curvi- linear Motion , 286 ... Force . by a Variable Force . Compression of Springs . Strain . Modulus of Elasticity . Indicator Diagrams , Stress , and ...
... Force . Mass . Work . Power . Energy ( Potential and Kinetic ) . Angular Velocity . Curvi- linear Motion , 286 ... Force . by a Variable Force . Compression of Springs . Strain . Modulus of Elasticity . Indicator Diagrams , Stress , and ...
Página 15
... force , viz . , the force equal to the tension of a string supporting a mass of 1 lb. , or , as it is commonly called , a pound weight . The force of gravity varies with the distance from the earth's centre ; thus , at a place where ...
... force , viz . , the force equal to the tension of a string supporting a mass of 1 lb. , or , as it is commonly called , a pound weight . The force of gravity varies with the distance from the earth's centre ; thus , at a place where ...
Página 21
... force which the earth exerts on a body at or near its surface . The weight of a body denotes a quantity of force . The mass of a body denotes a quantity of matter . Density of a body is the mass of unit volume . Relative density of a ...
... force which the earth exerts on a body at or near its surface . The weight of a body denotes a quantity of force . The mass of a body denotes a quantity of matter . Density of a body is the mass of unit volume . Relative density of a ...
Página 127
... force ? There 17. The expression ax2 + bx -- 30 is equal to 240 , when x equals 5 , and is equal to 100 , when x equals -2 ; find the values of a and b . 18. The electrical resistance of a wire of given material varies directly as the ...
... force ? There 17. The expression ax2 + bx -- 30 is equal to 240 , when x equals 5 , and is equal to 100 , when x equals -2 ; find the values of a and b . 18. The electrical resistance of a wire of given material varies directly as the ...
Página 252
... force is P x A , and the work done by this force in acting through a length of stroke L is PxAxL . If N denote the number of strokes per minute , the work done per minute PALN . = But the unit of power used by engineers is 33000 ft ...
... force is P x A , and the work done by this force in acting through a length of stroke L is PxAxL . If N denote the number of strokes per minute , the work done per minute PALN . = But the unit of power used by engineers is 33000 ft ...
Otras ediciones - Ver todas
Términos y frases comunes
algebraical angular velocity arithmetical axis base calculate called cent centimetre centre of gravity circle circumference cosine cubic centimetre cubic foot curve cylinder decimal denominator denote diameter distance divided division Draw equal equation EXERCISES expression factors feet figure Find the area find the number Find the value foot force fraction frustum funicular given number Hence horizontal line inclined intersection joining logarithms magnitude mantissa mass means measure method moment of inertia multiplied number of units numerical value obtained ordinates parallel parallelogram perpendicular planes of projection polygon protractor quantity radians radius ratio rectangle represented result rhombus right angles scale sides similar manner Simpson's rule sine slide slide rule specific gravity square inches square root squared paper straight line subtract surface tangent unit of length vectors velocity vertical volume weight yard
Pasajes populares
Página 16 - Therefore, the specific gravity of a solid or a liquid body is the ratio of its weight to the weight of an equal volume of water...
Página 228 - Of four-sided figures, a square is that which has all its sides equal, and all its angles right angles.
Página 310 - But we know that a force may be represented in a purely graphical manner by a straight line in the direction of the force containing as many units of length as there are units of force in the force. The end of this line is marked with an arrow head to show in which direction the force acts. According to this method each force is drawn in its proper position in the diagram of configuration of the frame. Such a diagram might be useful as a record of the result of calculation of the magnitude...
Página 230 - The square described on the hypothenuse of a rightangled triangle is equal to the sum of the squares described on the other two sides.
Página 45 - If the numerator and denominator of each fraction is multiplied (or divided) by the same number, the value of the fraction will not change. This is because a fraction b/b, b being any number, is equal to the multiplicative identity, 1 . Therefore, Hx8.= 88 _5_x!
Página 70 - Proportional, when the ratio of the first to the second is equal to the ratio of the second to the third.
Página 147 - If the given number is greater than 1, make the characteristic of its logarithm one less than the number of figures to the left of the decimal point in the number.
Página 377 - GENERAL INSTRUCTIONS. — If the rules are not attended to the paper will be cancelled. — You may take the Elementary, or the Advanced, or the Honours paper, but you must confine yourself to one of them.
Página 149 - The logarithm of the quotient of two positive numbers is found by subtracting the logarithm of the divisor from the logarithm of the dividend. (6) The logarithm of a power of a positive number is found by multiplying the logarithm of the number by the exponent of the power. For, N" = (oT)
Página 175 - From the top of a hill the angles of depression of two successive milestones, on a straight level road leading to the hill, are observed to be 5° and 15°.