Wednesday
April 23, 2014

Posts by Praveen


Total # Posts: 15

physics
A thin steel hoop of weight W and radius r starts from rest at A and rolls down along a circular cylindrical surface of radius a as shown in Fig. G. Determine the angle defining the position of point B where the hoop will begin to slip if the coefficient of friction at the poi...

Science
What will be the vapor pressure of Mono Chloro Benzene at 180 - 250 degree Celsius.

chemistry
heat gained by rod + heat lost by H2O = 0 [mass Fe x specific heat Fe x (Tfinal-Tinitial)] + [mass H2O x specific heat H2O x (Tfinal-Tinitial)] = 0 32.2*0.450*(58.6-22.3)+m*4.179*(58.6-63.9)=0 525.987=m*22.148 m=23.748 grams

chemistry
heat gained by rod + heat lost by H2O = 0 [mass Fe x specific heat Fe x (Tfinal-Tinitial)] + [mass H2O x specific heat H2O x (Tfinal-Tinitial)] = 0 32.2*0.450*(58.4-22.8)+m*4.179*(58.4-63.7)=0 515.844=m*22.148 m=23.3 grams

Physics
A capacitor of 4.5 MF, charged to 50v, is connected to another capacitor of = MF, charged to 100v. The total energy of the combination is

11th Grade Physics
If a particle's motion is described as x = ut+1/2at^2, where x is position, t is time and u and a, are constants. Show that the acceleration of the particle is constant

11th Grade Physics
A bus is moving with a velocity of 10m/s. A motor cyclist wishes to overtake the bus in 60 seconds. With what velocity the motor cyclist should chase the bus which is 1km ahead of him?

11th Grade Physics
An aircraft has a take-off speed 180km/h and length 250m from the start just before take-off a serious snag is detected in the engine and the aircraft failed to take-off. There is a wall at a distance 'd' = 230m ahead of the take-off point. The pilot applies breaks whi...

11th Grade Physics
An aircraft has a take-off speed 180km/h and has length 250m from the start just before take-off a serious snag is detected in the engine and the aircraft failed to take-off. There is a wall at a distance 'd' = 230m ahead of the take-off point. The pilot applies breaks...

11th Grade Physics
The answer to this question is 62.5s. Can you please explain it properly what is that Vf^2 = 2ad

11th Grade Physics
The maximum speed of a bus is 72km/h, it accelerates uniformly at the rate of 1m/s^2 and retards uniformly at the rate of 4m/s^2. Find the least time in which it can do a journey of 1km ?

11th grade Physics
So what can i do and please keep your lecture to yourself. I also know aht u wrote!!! And please help me and don't give moral lecture. N i didn't insult or make fun of anyone i just wanted help which i didn't get because you wrote something else out here!!!

science
what is the immediate response of human body soon after a poisoning.what type of reactions take place?

business law
what does LLC means. I know the full form of it. I want to know your definition in simple english ( english is my 2nd language). I read the internet, i still dont understand it. This seems like a simple definition: "Business owners form a Limited Liability Company (LLC) t...

business law
Which type of partners in limited partnership should participate in management? a) General partners only b)Limited partners only. c)Both general and limited partners. d)General partners only, unless there are no general partners, and in that case, limited partners participate ...

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