A Laboratory Course in Everyday PhysicsMacmillan, 1931 - 205 σελίδες |
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Σελίδα 17
... distance equal to the pitch of the screw , in this case in . The force is 10 lb. The law of machines is , if there is no friction : Weight distance weight moves force × distance force moves Weight = 10 X 176 Weight = 10 X 176 X 4 = 7040 ...
... distance equal to the pitch of the screw , in this case in . The force is 10 lb. The law of machines is , if there is no friction : Weight distance weight moves force × distance force moves Weight = 10 X 176 Weight = 10 X 176 X 4 = 7040 ...
Σελίδα 254
... distance behind the mirror that the object is in front ; also , the image is exactly opposite the object , that is , a line drawn from the object perpendicular to the mirror passes through the image . This can be shown as follows ...
... distance behind the mirror that the object is in front ; also , the image is exactly opposite the object , that is , a line drawn from the object perpendicular to the mirror passes through the image . This can be shown as follows ...
Σελίδα 299
... distance of 1 ft . I A gram centimeter of work is done when I g . of force is exerted through a distance of 1 cm . Since the pound of force and the gram of force vary with the distance of a body from the center of the earth , the foot ...
... distance of 1 ft . I A gram centimeter of work is done when I g . of force is exerted through a distance of 1 cm . Since the pound of force and the gram of force vary with the distance of a body from the center of the earth , the foot ...
Περιεχόμενα
CHAPTER | 1 |
CHAPTER II | 13 |
CHAPTER III | 20 |
Πνευματικά δικαιώματα | |
16 άλλες ενότητες δεν εμφανίζονται
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
amperes appliances armature atmosphere B. T. U. of heat bell body boiling point Boyle's law British Thermal Unit calories carbon centimeter coil cold water compressed convection cooled copper cubic cylinder Daniell cell density diagram direction distance dynamo electric current electromagnet electromotive force engine equal evaporation example exerted expands experiment fire flask foot pounds force arm fruit press fulcrum gases glass gram hot-water induced current iron jackscrew Joule's law lamp latent heat Leclanché cell lens lever lines of force liquid magnetic lines measure mercury metal meter molecules motor moves north pole object Ohm's law ohms Pascal's law passes pipe piston placed plate poundals pressure produced radiation rays resistance screw shown in Fig sound south pole square inch steam stove stroke substance surface tank temperature thermometer tube turned vacuum valve velocity vibration volts volume warmed watts waves weight arm wire