Answer / prakash

spherical baloon

Answer / jitendra

Spherical ballon
Since sphere has a smallest surface area the friction
exerted on the ballon by the air will be less than that of
a cylindrical ballon which has greater surface area than
spherical ballon. Hence spherical ballon will rises faster.

Answer / arshad

spherical

Answer / narendra

spherical baloon because spherical shape gets less pressure
of atm. gaseous.

Answer / bejoy

assuming both baloons to be having same volume..then both
will have same bouyantic force acting on them..now again as
u know a cylnder of same volume has more surfce area, the
weight of rubber used for a cylinderical baloon would b
higher(assuming same thicknes for both baloons), so
spherical will weigh lesser..now assuming again that the
same amount of rubber is used for both,then just drag
decides..and drag is decided by the configuration in which
the balon is rising..even a cylindircal baloon can rise
faster(assuming it to be going up length wise) if its
properly configured and left..assuming again no disturbing
forces in air..

Answer / janardhan

cylindrical ballon

Answer / karthick

in general anything in the form of spherical attains
equilibrium position faster than other form.so i guess
spherical rises faster than cylindrical

Answer / sharath

spherical

because of the curvy surface of spherical balloon it is easy to cut the air stream. but in the case of cylindrical balloon resistance is more due to flat face

Answer / san

spherical will rise fast..

Answer / dilip mishra

As we know the Pressure is inversely proportional to area ( P= F/ A) , hence spehre is less surface area which in-turn reduces the value of denominator and increase force on unit surface area then cylindrical balloon.

Greetings This question is about hydraulics and I request an expert to answer it. A simple hydraulic machine is made up of two heads, a larger one with a larger force inside a wider pipe and a smaller one with a smaller force inside a smaller pipe in width as in the second picture on this link: http://science.howstuffworks.com/hydraulic1.htm The question is this: what happens if the smaller head and the smaller force doesn’t exist but the smaller pipe is high enough to take all the liquid? For example the larger head is 1.00 sqr metre and can go down 1.00m under a weight of 100.00kg. The cross sectional area of the smaller pipe is 0.001 sqr metre. Now when the larger head goes down 1.00m, how high the liquid from the wider pipe can go into the smaller pipe of the cross sectional area of 0.001 sqr metre? Regards

0 Answers  

How to calculate heat load .For example 10 TR .Then how we will find load (we want rh(relatavie humidity) sir)

0 Answers  

why the reaction turbines are not exposed to atmosphere? and why the impulse turbines are exposed to?

0 Answers   TATA,

fan having rotational motion why

0 Answers   TATA, Tata Steel Limited, Telco,

What is the difference between sales engineer & Project engineer? What are your strenghts & give example? Why should XYZ Company to appoint you as a sales engineer?

1 Answers   Maksel Engineers, Thermax,

whose unit is Psi ?

5 Answers  

question related 2 soal car: Working under a bright light bulb or in direct sunlight, experiment with the angle of light hitting the solar panels. What angle gives you the fastest rotation of the wheels? How would you modify this car to make the wheels turn faster? How would you modify this design to make a car that could carry or pull a heavier load? How could you modify this design so that your car could run for short periods in complete darkness or low light situations?

1 Answers  

Is Solid work and solid edge best programs for drawing? what is the difference bewteen them? r there better softwares?

0 Answers  

Function of vaccum breaker in Condesor of STG ,and what is the interlocks for opening it.

1 Answers   Ambuja,

which material is suitable for punching press to avoid scratches amd waear of metal hittimg the blades?

0 Answers   Delta Thermoformers, Tata Steel Limited,

Pink city of india

4 Answers   VFJ,

What is the difference between circular runout and total runout?

3 Answers