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Neemit bagh

Jul 12, 2014

Find the dimensions of constant a and b occurig in van der Waal's equation . [p+a/v2][v-b]=RT



(P + a/V2) (V - b) = RT
P is pressure, V is volume and T is temperature.
[P] = [F/A]&#...

David

Jul 16, 2015



Tuba

Jun 13, 2014



Sunny Mathew

Feb 4, 2015

HOW DOES THERMOS FLASK MINIMISE HEAT TRANSFER BETWEEN THE CONTENTS OF THE BOTTLE AND OUTSIDE?



The thermos flask consists of a double-walled glass vessel resting on a cork inside a metal or plastic case. The outer surface of its inner wall and the inner surface of its outer...

Arjun Sukumaran

Dec 24, 2014

what are the uses of geostationary and polar satellites? what are their advantages ?



A geostationary satellite is an earth-orbiting satellite, placed at an altitude of approximately 35,800 kilometers directly over the...

Sonali Sahi

Apr 17, 2015



Ans:

Paral...

Rk sharma

Mar 6, 2015

A body cools from 80 Â°C to 50 Â°C in 5 minutes.  Calculate the time it takes to cool from 60Â°C to 30 Â°C.  The temprature of the surroundings is 20Â°C.



According to Newton's law of cooling, we have

mc (T1 - T2)/t = k [(T1 + T2)/2   -  T0)]        -----------...

Avinash Pratap singh

Apr 25, 2014



David

Jul 16, 2015



Neemit bagh

Jul 12, 2014

Write the dimensional formula of a/b in the relation f=aâˆšx+bt2 where f=force,x=distance,t=time.



f = aâˆšx + bt2, where [f] = [M L T âˆ’2], [x] = [L] and [t] = [T].

LHS is force. So both the terms on the RHS have the dimensions of force.

[f] = [a&...

Neemit bagh

Jul 12, 2014

Find the dimensions of constant a and b occurig in van der Waal's equation . [p+a/v2][v-b]=RT



(P + a/V2) (V - b) = RT
P is pressure, V is volume and T is temperature.
[P] = [F/A]&#...

David

Jul 16, 2015



Tuba

Jun 13, 2014



Sunny Mathew

Feb 4, 2015

HOW DOES THERMOS FLASK MINIMISE HEAT TRANSFER BETWEEN THE CONTENTS OF THE BOTTLE AND OUTSIDE?



The thermos flask consists of a double-walled glass vessel resting on a cork inside a metal or plastic case. The outer surface of its inner wall and the inner surface of its outer...

Arjun Sukumaran

Dec 24, 2014

what are the uses of geostationary and polar satellites? what are their advantages ?



A geostationary satellite is an earth-orbiting satellite, placed at an altitude of approximately 35,800 kilometers directly over the...

Sonali Sahi

Apr 17, 2015



Ans:

Paral...

Rk sharma

Mar 6, 2015

A body cools from 80 Â°C to 50 Â°C in 5 minutes.  Calculate the time it takes to cool from 60Â°C to 30 Â°C.  The temprature of the surroundings is 20Â°C.



According to Newton's law of cooling, we have

mc (T1 - T2)/t = k [(T1 + T2)/2   -  T0)]        -----------...

Avinash Pratap singh

Apr 25, 2014



David

Jul 16, 2015



Neemit bagh

Jul 12, 2014

Write the dimensional formula of a/b in the relation f=aâˆšx+bt2 where f=force,x=distance,t=time.



f = aâˆšx + bt2, where [f] = [M L T âˆ’2], [x] = [L] and [t] = [T].

LHS is force. So both the terms on the RHS have the dimensions of force.

[f] = [a&...

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