India set to use Japanese bullet train technology for Mumbai-Ahmedabad rout

[soumya1989]

technically speaking this equation will be used when constructing this HSR, so we are not off topic

I know mate. I used matlab before.

 

[IamINDIA]

I am only interested in speed and facilities in the bullet train and the ticket price.

exactly, the most obvious use of differential equations is to calculate acceleration.

I know mate. I used matlab before.

sorry, its just that in all the time i have known it, this is the only time it has done me any good. so got a bit excited

 

[Ayush]

how can people be so ignorant??

 

[IamINDIA]

how can people be so ignorant??

who? me?

what did i do :'(

 

[Ayush]

who? me?

what did i do :'(

no mate..it's for the qamar guy..

really,m amazed,surprised whatever u call it..

 

[Type 052D]

the only times we use differentiation is probably when studying dosage administration.

You will do alot of differentiation and even Integration in Biochemistry, and a lesser extend, Organic Chemistry. One small part of the course included inorganic biochemistry - such as how Iron and Magnesium are held in Porphyrin rings, which has a high level of Math content. In Biochemical Osllication, equations like ''a/ax^2 (dx^i+1/dt)'' will come up.

I know mate. I used matlab before.

What did you study

 

[IamINDIA]

You will do alot of differentiation and even Integration in Biochemistry, and a lesser extend, Organic Chemistry. One small part of the course included inorganic biochemistry - such as how Iron and Magnesium are held in Porphyrin rings, which has a high level of Math content. In Biochemical Osllication, equations like ''a/ax^2 (dx^i+1/dt)'' will come up.



What did you study

i see, i hope will do fine. maths has thankfully never been a problem for me.

 

[KRAIT]

Finally some mathematics discussion.

 

[Type 052D]

i see, i hope will do fine. maths has thankfully never been a problem for me.

What course are you doing in Uni

 

[Type 052D]

Finally some mathematics discussion.

You seen nothing yet

3.(a) According to the Michaelis-Menten equation, what is the v/vmax ratio when = 4Km?
(b) If vmax = 100micromol/mL sec and Km = 2mM, what is the velocity of the reaction when = 20mM?

4. (a) The Ka for formic acid is 1.78x10-4. What is the pH of a 0.1M solution of formic acid?
(b) NaOH is a strong base. What is the pH of a 0.1M solution of NaOH?

5. The following data are found for the steady-state kinetics of a multi-subunit enzyme:

(mmol/L)/Initial rate, v [(mmol/L) s-1]
0.25 0.26
0.33 0.45
0.50 0.92
0.75 1.80
1.00 2.50
2.00 4.10
4.00 4.80

Does this enzyme follow Michaelis-Menten kinetics?
Hint: Use a Lineweaver-Burk plot.

Answer: 3a. So, you need to start with the Michaelis-Menten equation:

v = Vmax / (Km + )
Divide both sides by Vmax to give:

v/Vmax = / (Km + )

Now, substitute 4Km for . That will give you:

v/Vmax = 4Km/ (Km + 4 Km) = 4 Km / 5 Km

The Km cancels, so you have:

v/Vmax = 4/5. In other words, if the concentration of the substrate is 4X Km, then the reaction will be going at 4/5 of the Vmax.

3b.Start again with the Michaels-Menten equation and just substitute the values that you are given. You can directly calculate v. This is not a hard problem, at all.

4a. For any weak acid in water, the weak acid dissociates to form H+ ions and the conjugate base, in this case formate ions. The equilibrium reaction is:

HFor <--> H+ + For-

The expression for Ka is:

Ka = [H+][For-]/[HFor] = 1.78 X 10-4

When you just add the weak acid to water, [H+] = [For-]. Also, because this is a weak acid, nearly all of the formic acid in the solution is still in the HFor form. So, the equilibrium constant expression becomes:

Ka = 1.78 X 10-4 = [H+]^2/0.1

When you solve this, you find that [H+] = 4.2 X 10-3. So, the pH = 2.4

4b. A strong base completely dissociates in solution, so [OH-] = 0.1 M. Since [H+][OH-] = 1 X 10-14, [H+] = 1 X 10-13, and pH = 13.

5. A Lineweaver-Burk plot has 1/v as a function of 1/. So, find the inverse of each value in your table, and plot 1/v on the Y-axis and 1/ on the X-axis.

 

[IndoUS]

i see, i hope will do fine. maths has thankfully never been a problem for me.

Have't seen you on the forum for a long time, how are you doing?

 

[IamINDIA]

What course are you doing in Uni

medicine, is what i am doing.

Have't seen you on the forum for a long time, how are you doing?

fine, thankyou.

 

[Type 052D]

medicine, is what i am doing.

fine, thankyou.

You got into medical school in Britain .. Considering how competitive it is in Britain, I'd say your smart. So many people in 6th form Biology classes want to be medics but failed. Even people with A* in A levels.

 

[KRAIT]

@Type 052D My juniors used it a lot. This equation. I know a bit about research and Mathematical models and equations.

 

[gslv mk3]

Usually, I would tell you to look it up yourself. But since you insist, here you go

Railways keen on using Kaveri engines developed by DRDO: Parliamentary Committee - Economic Times
Next time, please don't doubt me and look it up yourself.

have you ever seen a gas turbine powered HSR??ever?