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In the international system of units (SI), the basic unit of length is:______ The symbol is:______ In addition, some other units are specified: kilometer (km), decimeter (DM), centimeter (CM), millimeter (mm), micron (μ m), nanometer (nm), etc
In the international system of units, the basic unit of length is the meter, the symbol M
RELATED INFORMATIONS
- 1. 0025m=()dm=()cm=()mm
- 2. Physical conversion: 1.5.2m = --- m 2.9.8m = DM = --- cm 3.207mm = --- M = --- DM 4.3.8km = --- M
- 3. The quadratic function f (x) satisfies f (2 + x) = f (2-x), f (2) = 1, f (0) = 3. If f (x) has a minimum value of 1 and a maximum value of 3 on [0, M], then the value range of M is
- 4. Let f (x) be any function defined on (- A, a). It is proved that G (x) = f (x) + F (- x) is an even function, H (x) = f (x) - f (- x) is an odd function, and X belongs to (- A, a) Please; ah
- 5. How to measure quadrilateral area in Geometer's Sketchpad? How to select the interior of quadrilateral?
- 6. As shown in the figure, in square ABCD, e is the point on DC, connect be, make CF ⊥ be at P, intersect ad at F, if AP = ab
- 7. The maximum value of quadratic function y = - x ^ 2-4x + 3 and the equation of symmetry axis are
- 8. There are 324 squares on a go board, each with a piece If the result of the game is: Black accounts for half of the total, white accounts for a quarter of the total. Then who wins the game?
- 9. How to prove that a graph is centrosymmetric, congruent or other?
- 10. If we know that the sum of the two right sides of a right triangle is equal to 8 and what are the two right sides, what is the maximum area of the right triangle?
- 11. In the international system of units, the unit of length is___ , the symbol is__ What is the time unit___ The symbol is___ 50 nm___ m
- 12. 1、10³km=______ mm=_____ Micron 2, 180dm=_____ m=_______ nm 3、2,7x10³nm_____ km=____ dm 4、485m=______ mm=______ km
- 13. (1)75μm= = m (2)15cm= = km (3)240dm= = km (4)0.36mm= = nm
- 14. 76x10, KM = M = DM = um = nm
- 15. 0.05m=( )cm,5mm=( )m,0.7μm=（ ）nm,100cm=( )μm,30nm=( )km,2km=( )mm The answers should be expressed by scientific counting
- 16. How much is 0.05 μ m? How much is nm?
- 17. At present, the chip line width of the most advanced microelectronic devices in the world has been reduced to 0.13um. In a few years, it may be reduced to 0.05um, 0.05um=___ nm=___ m=__ km
- 18. 0.05um equals () nm equals () m equals () km
- 19. The diameter of a hair is only about 7 × 10 negative quadratic mm, how many nm
- 20. The diameter of human hair is about 7 * 10 ^ - 5 meters. How many nanometers is the diameter of human hair