Recent content by vijayram

Arrange the energy released upon hydration of Magnesium Oxide,calcium oxide,barium oxide,strontium oxide. I placed Magnesium oxide at the last,since magnesium hydroxide is a stable so lot of energy must be released in order to achieve that state,but the answer says calcium oxide.

I got -0.25mv2

yes sir,the others being none of the above and insufficient information

Homework Statement A heavy mass m is attached to thin wire and whirled in a vertical circle. Then the wire is most likely to break A only when mass is at the lowest B somewhere between lowest point and horizontal point C only when mass is horizontal D only when mass is at highest point...

Thank you very much sir for replying but it actually happened that both options were there in the question when my answer matched with one of those,I didn't check the others.

Sir,since initially no rotation motion would be present so it must be 1/2mv2

Homework Statement A uniform ring of mass m and radius r is projected horizontally with velocity v on a rough horizontal floor,so that it starts off with a pure sliding motion and it acquires a pure rolling motion after moving a distance d.If the coeffcient of friction between ground and ring...

Homework Statement [/B] Water rises in a capillary tube to certain height such that the upward surface due to surface tension is balanced by 7.5 X 10-4N Force due to weight of the liquid. If the surface tension of water is 6 X 10-2Nm-1,the inner circumference of the capillary must be Homework...

I have read Average translation kinetic energy is 1/2RT per degree of freedom and Average translation kinetic energy for an ideal gases is 3/2RT.How? Does it imply f=3 for all ideal gases?

yes sir understood it clearly,and yes it is 1lakh pascal,but what if the scenario is changed and the piston is heated by a heater?

but sir,external pressure is constant and is equal to 1 pascal but internal pressure changes with the position of the piston.And the numbers didn't match sir.Could it be like this sir?when the external agent is also taken into account,it comphensates,and the piston cannot move on it's own.

oh yes i think the same sir,so atmospheric pressure is not equal to internal pressure of the gas and it could be found only through the gas laws.Am i right sir?

but the piston is massless so according to Newton's law f=ma,m=0 so net external force should be equal to zero.

sir i solved the problem and got k/100R as the answer,but i have one more additional doubt,the piston is massless so net force on the piston should be zero or external pressure should be equal to internal pressure,or internal pressure should be equal to atmospheric pressure,but the pressure...

Thank you very much sir but if the piston is moved by a heater,how would the scenario change?