Answer / manas

Density is a physical characteristic of material or substance.
The mass density or density of a material is defined as its
mass per unit volume.
So Density=M/V
Units of Density:-
The SI unit for density is:

kilograms per cubic metre (kg/m3)
kilograms per litre (kg/L)
grams per millilitre (g/mL)
metric tons per cubic metre (t/m3)

Answer / balu

Density:
Ratio of mass per unit volume. Used as a factor for
interconversion of mass and volume.

GENETIC ENGINEERING - EXAMPLE 27.4 : According to Hardy-Weinberg Equation, p x p + 2 x p x q + q x q = 1 where p = dominant allele frequency and q = recessive allele frequency. Let p + q = 1. Fraction of population has 2 copies of the p gene = p x p. Fraction of population has 2 copies of the q gene = q x q. Fraction of population has a copy of p gene and a copy of q gene = 2 x p x q. In a small town, the allele frequency is q = 0.2 for a recessive gene, the delta-32 mutation, that gives human protection from HIV infection. (a) Find the allele frequency of a dominant gene, p. (b) What percent of the population has at least a copy of the gene that cause the population either immune to HIV or less susceptible to the disease?

1 Answers  

---

Question 38 - The terminal velocity of a falling object, v is given by v = sqrt [ 4g (R - r) D / (3Cr) ] where sqrt is the square root of, g = 9.81, D = 0.000208, R = 1800, r = 994.6, m = 0.000893. The Reynold number, L is given by L = rD (v) / m. The C for various conditions are : C = 24 / L for L < 0.1; C = 24 (1 + 0.14 L^0.7) / L for 0.1 <= L <= 1000; C = 0.44 for 1000 < L <= 350000; C = 0.19 - 80000 / L for 350000 < L. Find the value of v for the situation above by trial and error, ^ is power, <= is less than or equal to.

1 Answers  

---

repected sir i have given gate exam today.......... if i ll get the better rank in that ....what is the next process .....shall i give another one test......or wat....i dint get properlly..... plz help me or mail me on Nish_gasti@yahoo.co.in

0 Answers   IOCL,

---

ENVIRONMENTAL ENGINEERING - QUESTION 22.3 : A well delivers 225 US-gallons per minute of water to a chemical plant during normal system operation. (a) Calculate its flowrate in the unit of mega US-gallon per day or MGD. (b) The following formula is written next to the chlorine feed point : (chlorine feed rate, lb / day) = (flowrate, MGD) X (dose, mg / L) x (8.34). If this formula is correct, then what should the chlorine feed rate to be in pounds per day (lb / day) if the desired dose is 2 mg / L. (c) Prove by calculations that the constant 8.34 in the formula next to the chlorine feed point is correct. Let 1 US-gallon = 3.78541 L and 1 mg = 0.0000022046 pound.

1 Answers  

---

How instrument air is continually supplied in process plant?

0 Answers  

---

How can you determine the proper pipe thickness for a slurry line?

0 Answers  

---

What is a good method of analyzing powders for composition?

0 Answers  

---

I am pg student of chemical engg. I am intrested Heat Transfer Subject . I want information about advance heat transfer related PG PROJECT

0 Answers  

---

What are the apt definitions for apparent power, active power and reactive power? Explain about different types of lamps?

0 Answers  

---

i have done B.TECH in che.tech.and doing MBA . why you doing mba why u have not join any job.

0 Answers   IBM,

---

what is R1,R2,R3, R4........?

0 Answers   Okaya,

---

what is the melting point of ash?what is value of ash in crude oil?

1 Answers  

---