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What is the difference between heat and temperature

Posted by Biswanath Pradhan 7 years, 1 month ago

1 answers

Ayushi Yadav 7 years, 1 month ago

The Heat is defined as when an object is become hotter or we can say that the Motion of molecules inside it. Is called heat or total energy of all the molecular motion in it. Temperature is measure of The of the average heat or thermal energy of molecules in a substance.

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What is difference between accuracy and precision

Posted by Ayushi Singh 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Nikhil Dwivedi 7 years, 1 month ago

If an answer is coming 10.32 so it is accurate value and 10 will be it's precise value

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find the height to which water at 4°c will rise in capillary tube of 1/10cube m diameter. Take g=9.8m/s square. Angle of contact ,θ=0 and T=0.072N/m

Posted by Harsh Rajput 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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Identical spheres of radius R made up of same material are kept at a distance D apart then the gravitational attraction between them is proportional to what

Posted by Akshay Khose 7 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Akshay Khose 7 years, 1 month ago

No I think it should be R^4

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Sahil Srivastava 7 years, 1 month ago

R^6

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what is moi?

Posted by Nishita Tomar 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Vicky Kumar 7 years, 1 month ago

Moment of inertia, or MOI, is a property of physics that indicates the relative difference in how easy or difficult it will be to set any object in motion about a defined axis of rotation. The higher the MOI of an object, the more force will have to be applied to set that object in a rotational motion

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What is pseudo force??

Posted by Nikhil Dwivedi 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Utsav Kumar Shukla 7 years, 1 month ago

It is a imaginary force or fake force used to apply Newton 1st law of motion applicable only with non-interial frame.

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Why the Centre of mass for two particle system lies on the line joining the two particles?

Posted by Rachit Sirotia 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Priyanka Nayak 7 years, 1 month ago

Because there the entire mass of that is appers to be concentrated?

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A woman weighing 50kgf stands on a weighing machine placed in a lift what will be the reading of machinewhen the lift is moving upwards with a uniform velocity of 5 m/s

Posted by Tuba Zainab 7 years, 1 month ago

CBSE > Class 11 > Physics

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Phase epoch and phase difference

Posted by Basit Dar Dar 7 years, 1 month ago

CBSE > Class 11 > Physics

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Name the physical quantity which is equal to time rate if change of angular momentum

Posted by Bipin Singh 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Vicky Kumar 7 years, 1 month ago

Changing the point can change the torque's magnitude and direction. The vector sum of all torques acting on a particle is equal to the time rate of change of the angular momentum of that particle

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If the kinetic energy of a body decreases by 19% then by what % the linear momentum of the body decreases?

Posted by Sajid Ali 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Vicky Kumar 7 years, 1 month ago

Originally KE=E(say). Reduced KE= 81%of E= 0.81 E But p= √(2mE) So p'= 0.9 p. Hence the momentum decreases by 0.1 p or 10%.

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At what altitude the acceleration due to gravity above the earth surface would be half of its value on the surace of earth?( R of earth is 6400)

Posted by Justin Bieber 7 years, 1 month ago

CBSE > Class 11 > Physics

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Principle of physical independent of motion

Posted by Rahul Yadav 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Vicky Kumar 7 years, 1 month ago

two motions take place independent of each other. This is called the principle of physical independence of motions. The velocity of the projectile can be resolved into two mutually perpendicular components: the horizontal component and the vertical component. Acceleration changes velocity.

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Define kinematic

Posted by Kaushik Das 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Saba Elias 7 years, 1 month ago

It is the study of theoratical mechanics in which mechanical motion of particle and rigid body is studied

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All constant are dimensionless.comment

Posted by Nitesh Yadav 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Mihir Kumar 7 years, 1 month ago

Yes

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A body hangi g from a spring stretches it by 1cm at the earth surface . How much will the same body stretch,the sprinf at place 1600 km above the earth surface

Posted by Justin Bieber 7 years, 1 month ago

CBSE > Class 11 > Physics

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What is definition of physics

Posted by Hemant Singh 7 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Saba Elias 7 years, 1 month ago

Physics is the branch of science which devoted to the study of nature and natural phenomena

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Amit Yadav 7 years, 1 month ago

Physics is that branch of science which deals with various physical phenomenon.

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Two scatters of equal mass on a circular rink go around the rink in the same time one scatter is twice as far from the centre of the ring as other.compare the speed of the scatters and centripetal force acting on them

Posted by Surbhi Patel 7 years, 1 month ago

CBSE > Class 11 > Physics

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How and why pressure=f/a=mgh

Posted by Sachin V 7 years, 1 month ago

CBSE > Class 11 > Physics

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Scape velocity can depend on Mass ...

Posted by Raj Hindu 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Abhi Yaduvanshi 7 years, 1 month ago

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Two forces F1 and F2 are applied on a spool of mass M and moment of inertia I about an Axis passing through its centre of mass. Find the ratio of F1/that the force of friction is zero

Posted by Aman Gupta 7 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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P=force/area and stress also = to force /area then according to this they must be equal....

Posted by Yash Sharma 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Aman Kumar 7 years, 1 month ago

No they are not equal becoz in case of pressure, when a force if applied from outside(Fext.) per unit area but in case of stress, the restoring force(Fr) which is applied from inside... Ultimately, they both apply force per unit area but truely they are different.....

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Escape velocity derivation

Posted by Ananya Shukla 7 years, 1 month ago

CBSE > Class 11 > Physics