|

 harman ghuman's messages in the community 1 2 3 GO Go to Page...
Message
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
i thought the answer would be 14.bt dats wrong
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]

Evaluate the limits for this function, if they exist. If a limit does not exist, enter NONE.

a) = ?

 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
i found out the answer to be 1098.63.bt its not the right answer.
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
correct answer. please help me in 1 more.Poiseuille's Law gives the rate of flow, R, of a gas through a cylindrical pipe in terms of the radius of the pipe, r, for a fixed drop in pressure between the two ends of the pipe.given that the rate of flow is proportional to the fourth power of the radius. Use k = 225/128Question-What is the rate of flow of the same gas through a pipe of radius 5? Give an exact answer.
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]

 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]

You are given the following functions.

 (I) (II) (III)

Question 1 -  Which of the function(s) have the x-axis as a horizontal asymptote? (Select all that apply.)

Question 2- Which of the function(s) are symmetric about the y-axis? (Select all that apply.)

 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]

(a) Find the coordinates of C in terms of b in Figure B ??

 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]

Question 1 - The desert temperature, H, oscillates daily between 45ºF at 6am and 85ºF at 6pm. Write a possible formula for H in terms of t, measured in hours from 6am. Use the form

H = A cos(Bt) + C.

A =?
B =?
C =?

Question 2 - Simplify the expressions below.

(a) For - < t < ,
cos( tan-1( t )) =?

(b) For -1 < w < 1,
cot( cos-1( w )) =?

 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]

Question 1 - The desert temperature, H, oscillates daily between 45ºF at 6am and 85ºF at 6pm. Write a possible formula for H in terms of t, measured in hours from 6am. Use the form

H = A cos(Bt) + C.

A =?
B =?
C =?

Question 2 - Simplify the expressions below.

(a) For - < t < ,
cos( tan-1( t )) =?

(b) For -1 < w < 1,
cot( cos-1( w )) =?

 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
no1 interested ???
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
 Question 1

The above drawings contain microscopic representations of small samples of three different substances. Which of these images represent a pure chemical compound?
The open circles represent atoms of type A.  The solid circles represent atoms of type B.

 Only 1 1 and 2 All three 2and 3

 Question 2

Which substance has a high melting point, a high boiling point, conducts electricity when melted and when dissolved in water, but does not conduct as a solid?

 a) SO3 b) CBr4 c) MgBr2 d) Cu

 Question 3

This chemical equation is NOT balanced

Al   +     HCl       AlCl3     +      H

When balanced the coefficient of H2 is:

 a) 1 b) 2 c) 3 d) 4

 Question 4

The following drawing contain a microscopic representation of a mixture of hydrogen H2() and oxygen O2 () in a closed flask.

If these substances react according to the following chemical equation

2H2 + O2 à 2H2O

which of the following images best represents the content of the flask at the end of the reaction?
 a) b) c) d)

 Question 5

14.  What is the mass percent of iron in iron(II) oxalate, FeC2O4?

 a) 14.29% b) 61.18% c) 32.07% d) 38.82%

 Question 6

A compound contains 43.64% P with the remainder being oxygen.  What is the empirical formula of the compound?

 a) PO5 b) P2O5 c) P2O3 d) P4O10

 Question 7

According to the chemical equation,

4Fe(s) + 3O2(g) à 2Fe2O3(s),

what is the maximum number of grams of Fe2O3 that can be produced from 5.0 g Fe and an excess of O2?

 a) 2.5 g b) 7.1 g c) 0.045 g d) 2.0 g

 Question 8 (

Which of these is a non polar molecule?

 a) NaF b) HF c) CF4 d) PF3

 Question 9

Which of these solids is likely to be least soluble in water?

 a) MgBr2 b) I2 c) C6H12O6 d) NaF

 Question 10

Which of the following compound is likely to be insoluble in water:  Na2CO3, ZnS, KOH, and NH4Cl?

 a) ZnS b) KOH c) NH4Cl d) Na2CO3

 Question 11

What is the net ionic equation for the reaction below?

AgNO3(aq)  +  KBr(aq)  ®  AgBr(s)  +  KNO3(aq)

 a) K+(aq)  +  NO3-(aq)  ®  KNO3(s) b) AgNO3(aq)  +  KBr(aq)  ®  AgBr(s) c) K+(aq)  +  NO3-(aq)  ®  KNO3(aq) d) Ag+(aq)  +  Br-(aq)  ®  AgBr(s)

 Question 12

What is the oxidation number of nitrogen in N2O3?

 a) 0 b) +1 c) +2 d) +3

 Question 13

All of the following chemical equations represent oxidation-reduction reactions EXCEPT:

 a) H2(g)  +  Cl2(g)  ®  2 HCl(g) b) C(s) + O2(g) à CO2(g) c) Ca(s)  +  2 HCl(aq)  ®  CaCl2(aq)  +  H2(g) d) H2S(aq) + Zn(OH)2(aq) à ZnS(s) + 2H2O(l)

 Question 14

A chemist needs 0.050 g of substance A to complete a reaction. If she has a solution with a  concentration of 0.25 g/L, how many liters of this solution does she need to add?

 a) 0.050 L b) 0.20 L c) 0.25 L d) 5.00 L
 This Post 0 points    (0    in 0 votes )   [?]
optical isomerism ,racemic mixture. i think
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
what is r(rectus) and s(sinister) system of nomenclature?
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
what is fischer projection formula?plz explain
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
how to solve it?
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
the edge of a cube is measured using a vernier calliper(9 divisions of main scale is equal to 10 divisions of vernier scale and 1 main scale division is 1mm.). the main scale division reading is 10 and one division of vernier scale was found to be coinciding with main scale. the mass of cube is 2.736 gm. calculate density in gram /cm3...
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
the edge of a cube is measured using a vernier calliper(9 divisions of main scale is equal to 10 divisions of vernier scale and 1 main scale division is 1mm.). the main scale division reading is 10 and one division of vernier scale was found to be coinciding with main scale. the mass of cube is 2.736 gm. calculate density in gram /cm3...
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
plz tell me also
 Discussion Forums -> This Post 0 points    (0    in 0 votes )   [?]
plz rate me
 1 2 3 GO Go to Page...
 Go to:  Select a forum   Board Exams - CBSE, ICSE, State Boards   Course Material   Computer Science   Physics   General Physics   Mechanics   Optics   Thermal Physics   Electricity   Magnetism   Modern Physics   Mathematics   Algebra   Trignometry   Analytical Geometry   Differential Calculus   Integral Calculus   Vectors   Chemistry   Physical Chemistry   Organic Chemistry   Inorganic Chemistry   Institutes & Courses   Coaching Institutes & Course Material   About IITs and JEE   Non IIT Institutes   Counselling Zone   Parents Corner   Parent Discussion Board   Biology (for Medical Entrance)   Botany   Zoology   Fun Zone   Lounge   Games, Puzzles and Quizzes   General Knowledge

Name

Mobile

E-mail

City

Class