Problems in Elementary PhysicsH. Holt, 1896 - 194 σελίδες |
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Σελίδα 81
... object to be weighed , hung at the point R , and F a movable weight by which a balance may be obtained . Let W be 100 lbs . and let SR be 1.5 inches . Where must F , which weighs 1 lb. , be FIG . 33 . placed to balance W if the lever ...
... object to be weighed , hung at the point R , and F a movable weight by which a balance may be obtained . Let W be 100 lbs . and let SR be 1.5 inches . Where must F , which weighs 1 lb. , be FIG . 33 . placed to balance W if the lever ...
Σελίδα 86
... object resting on a frictionless inclined plane ABC . OW represents the weight of the block O. Resolve OW into two components , one parallel to AC and one perpendicular to AC . = 41. If OW ( Fig . 42 ) 5 kgm . , and its component per ...
... object resting on a frictionless inclined plane ABC . OW represents the weight of the block O. Resolve OW into two components , one parallel to AC and one perpendicular to AC . = 41. If OW ( Fig . 42 ) 5 kgm . , and its component per ...
Σελίδα 116
... objects from those which represent rays or beams of light . The object - lines may well be made with a softer pencil , a broader mark , or of a different color . B. Usually do not attempt to represent objects in perspective . The ...
... objects from those which represent rays or beams of light . The object - lines may well be made with a softer pencil , a broader mark , or of a different color . B. Usually do not attempt to represent objects in perspective . The ...
Σελίδα 117
... object . whose shadow is cast on a screen . Find by the principles of similar triangles how far from the object the screen must be in order that the shadow may be three times as large as the object . 7. Draw a diagram to show the ...
... object . whose shadow is cast on a screen . Find by the principles of similar triangles how far from the object the screen must be in order that the shadow may be three times as large as the object . 7. Draw a diagram to show the ...
Σελίδα 120
... object , mirror , and image . 4. A ray of light falls upon a smooth reflecting surface making the angle of incidence 40 ° . Draw the path of the ray after reflection and state the value of the angle of re- flection . 5. A man standing ...
... object , mirror , and image . 4. A ray of light falls upon a smooth reflecting surface making the angle of incidence 40 ° . Draw the path of the ray after reflection and state the value of the angle of re- flection . 5. A man standing ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
amperes angle of incidence barometer block body Boyle's Law brass C₁ candle-power cell centimeter circuit Clark cell coefficient of friction coil concave mirror conjugate foci copper wire cubic current strength deflection density diagram to show diameter direction distance Draw a diagram dynes electric energy equal ergs Express the ratio Find focal length force formula given grams heat horizontal inches index of refraction internal resistance inversely iron lamp latent heat lens liquid magnetic pole mass measure mercury meter Ohm's Law ohms parallel pendulum plane poundal principal focus Prob problems produce Prof proportion represent resultant solid specific gravity square surface tangent galvanometer temperature thick tion total pressure tube units V₁ varies directly velocity of sound vessel vibration-number vibrations per second volts volume watts weight wheel width
Δημοφιλή αποσπάσματα
Σελίδα 1 - Measures of Length. 10 millimeters (mm.) 1 centimeter (cm.) 10 centimeters 1 decimeter (dm.) 10 decimeters 1 meter (m.) 10 meters 1 dekameter (Dm.) 10 dekameters 1 hectometer (Hm.) 10 hectometers 1 kilometer (Km.) 10 kilometers 1 myriameter (Mm.) 1181.
Σελίδα 2 - Measures of Weight 10 milligrams (mg) =1 centigram eg 10 centigrams =1 decigram dg 10 decigrams =1 gram g 10 grams =1 dekagram Dg 10 dekagrams =1 hektogram Hg 10 hektograms =1 kilogram Kg...
Σελίδα 161 - Remembering that the joint resistance of two (or more) circuits in parallel is the reciprocal of the sum of the reciprocals of the resistances of the several branches, we have: Fig.
Σελίδα 156 - ... and the projection of one on the other — is retrograde, or in the same direction as the motion of the hands of a watch.
Σελίδα 124 - A' MB' are similar, and A'B'^B'M AB BM' So in this case, as before, the size of the image is to the size of the object, as the distance of the image from the mirror is to the distance of the object from the mirror.