What SI prefix is used to represent 10-18?

What SI prefix is used to represent 10-18? 
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ANSWER: ATTO
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Let us assume that you construct ordered tree to represent the compound proposition (~(p˄q))↔(~p˅~q). Then, the prefix expression and post-fix expression determined using this ordered tree are given as ........... and ............. respectively. (A) ↔~˄pq˅ ~~pq, pq˄~p~q~˅↔ (B) ↔~˄pq˅ ~p~q, pq˄~p~q~˅↔ (C) ↔~˄pq˅ ~~pq, pq˄~p~ ~q˅↔ (D) ↔~˄pq˅ ~p~q, pq˄~p~~q˅↔

Description : Let us assume that you construct ordered tree to represent the compound proposition (~(p˄q))↔(~p˅~q). Then, the prefix expression and post-fix expression determined using this ordered tree are given as ........... and .......... ... ~p~q~˅↔ (C) ↔~˄pq˅ ~~pq, pq˄~p~ ~q˅↔ (D) ↔~˄pq˅ ~p~q, pq˄~p~~q˅↔

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What is are the different way to represent 18 times 5?

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Description : The sub-multiple prefix 'pico' (p) means ____________. A. thousandth (10 to the -3rd power) B. millionth (10 to the -6th power) C. billionth (10 to the -9th power) D. trillionth (10 to the -12th power)

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The sub-multiple prefix 'nano' (n) means ____________. A. thousandth (10 to the -3rd power) B. millionth (10 to the -6th power) C. billionth (10 to the -9th power) D. trillionth (10 to the -12th power)

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The sub-multiple prefix 'micro' (Greek letter 'mu') means ____________. A. thousandth (10 to the -3rd power) B. millionth (10 to the -6th power) C. billionth (10 to the -9th power) D. trillionth (10 to the -12th power)

Description : The sub-multiple prefix 'micro' (Greek letter 'mu') means ____________. A. thousandth (10 to the -3rd power) B. millionth (10 to the -6th power) C. billionth (10 to the -9th power) D. trillionth (10 to the -12th power)

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The sub-multiple prefix 'milli' (m) means ____________. A. one thousandth (10 to the -3rd power) B. one millionth (10 to the -6th power) C. one billionth (10 to the -9th power) D. one trillionth (10 to the -12th power)

Description : The sub-multiple prefix 'milli' (m) means ____________. A. one thousandth (10 to the -3rd power) B. one millionth (10 to the -6th power) C. one billionth (10 to the -9th power) D. one trillionth (10 to the -12th power)

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The multiple prefix 'mega' (M) means ____________. A. thousand (10 to the 3rd power) B. million (10 to the 6th power) C. billion (10 to the 9th power) D. trillion (10 to the 12th power)

Description : The multiple prefix 'mega' (M) means ____________. A. thousand (10 to the 3rd power) B. million (10 to the 6th power) C. billion (10 to the 9th power) D. trillion (10 to the 12th power)

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The multiple prefix 'tera' (T) means ____________. A. thousand (10 to the 3rd power) B. million (10 to the 6th power) C. billion (10 to the 9th power) D. trillion (10 to the 12th power)

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The multiple prefix 'kilo' means ____________. A. thousand (10 to the 3rd power) B. million (10 to the 6th power) C. billion (10 to the 9th power) D. trillion (10 to the 12 power)

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The multiple prefix 'giga' (G) means ____________. A. thousand (10 to the 3rd power) B. million (10 to the 6th power) C. billion (10 to the 9th power) D. trillion (10 to the 12th power)

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Which of the following are correct with respect to the unit of radioactivity? (i) The SI unit of radioactivity is curie (Ci) (ii) `1 Ci = 3.7 xx 10^(-

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A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle system (in SI units) is given below : Δ P/L = 375 × 10 3 VOM + 10.94 × 10 6 V2 OM (SI units) If water is to be used as the fluidising medium, the minimum fluidisation velocity, VOM is (A) 12 mm/s (B) 16 mm/s (C) 24 mm/s (D) 28 mm/s

Description : A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle ... fluidisation velocity, VOM is (A) 12 mm/s (B) 16 mm/s (C) 24 mm/s (D) 28 mm/s

Last Answer : (B) 16 mm/s

A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle system (in SI units) is given below: Δ P/L = 375 × 10 3 VOM + 10.94 × 10 6 V2 OM (SI units) If water is to be used as the fluidising medium, in actual operation, the above bed has a height = 1 m. What is the porosity of the fluidised bed? (A) 0.2 (B) 0.5 (C) 0.7 (D) 0.8

Description : A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle system ... What is the porosity of the fluidised bed? (A) 0.2 (B) 0.5 (C) 0.7 (D) 0.8

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