Tài liệu English for students of Physics Unit 1 doc

... of a baseball moving at 15 0 km/h (90 mph) is 1. 1 x 10 - 34 m (3.6 x 10 - 34 ft). The diameter of a hydrogen atom (the simplest and smallest atom) is about 5 x 10 - 11 m (about 2 x 10 - 10 ... pleasure in /of point of/ in possibility of problem in /of worry about prospect of purpose of/ in question about /of reason for satisfaction with succes...

Ngày tải lên: 22/01/2014, 15:20

... nm mxnx x + + = 21 6. () 1 12 12 1 xx xx yy yy − ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛ − − =− 7. 1 2 2 2 2 2 2 =++ c z b y a x 8. ()()() [ ] 2 21 2 21 2 21 zzyyxxd −+−+−= 9. ( ) 222 1 eab −= 10 . 022 22 =++++ ... Geography 8. History 9. Information Science 10 . Linguistics 11 . Mathematics 12 . Meteorology 13 . Physics 14 . Political Science 15 . Psychology is a branch of...

Ngày tải lên: 25/01/2014, 23:20

... ever-living source of fortitude and encouragement. 21 Unit Two PHYSICS READING PASSAGE Physics and scopes of Physics Physics is the major ... application of physics to much of modern technology. Thermodynamics, for example, a branch of physics developed during the 19 th century, deals with the elucidation...

Ngày tải lên: 26/01/2014, 00:20

... density of water. The table of densities below shows that mercury (Hg) has a density of 13 .6g/cm 3 . This means that a cubic centimeter of mercury has 13 .6 times the mass of a cubic centimeter of ... standard of length in 18 89. Until 19 60, all U.S. measurements of length were derived from a standard meter (meter prototype number 27). In 19 60 the meter was redefine...

Ngày tải lên: 26/01/2014, 00:20

... System of Units as interpreted or modified for the United States by the secretary of commerce. At the 19 60 conference, standards were defined for six base units and for two supplementary units; ... seventh base unit, the mole, was added in 19 71. The names of these units are exactly the same in all languages. In the metric system, the main unit of distance is the mete...

Ngày tải lên: 26/01/2014, 00:20

... Symbol 10 24 10 21 10 18 10 15 10 12 10 9 10 6 10 3 10 2 10 1 yotta zeta exa peta tera giga mega kilo hector deka Y Z E P T G M k h da 10 -1 10 -2 10 -3 10 -6 10 -9 10 -12 ... annihilation 10 19 3 10 -11 Soft X-rays Electron impact on a solid 10 18 3 10 -10 Ultraviolet, X- rays Atoms in sparks 10 17 3 10 -9 Ultraviolet Ato...

Ngày tải lên: 26/01/2014, 00:20

... Vietnamese /English. KEY TERMS Acceleration (n) : 1. the rate of change of the speed for a moving body that moves along a straight line. Gia tốc 2. a vector that indicates the rate of change of speed ... surface of our planet. Galileo Galilei (15 64- 16 42) was the first to understand this. (how) …………………………………………………………………………………… 15 . The force causes motion and there is...

Ngày tải lên: 26/01/2014, 00:20

... 19 7 (19 31) , 14 1 16 0. REFERENCES 23 TABLE 1- 1. Comparison of the Variation of Selectivity and Efficiency Necessary to Increase Resolution from 1 to 1. 5 Resolution Efficiency Selectivity 1 10,000 1. 04 1. 5 ... equal, then equation (1- 9) reduces to (1- 10) Peak width could be expressed from equation (1- 8) as (1- 11) If we select the retention of the second analyte for...

Ngày tải lên: 24/12/2013, 18:15

Ngày tải lên: 10/12/2013, 12:15