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Why friction is downward in banking of roods

Posted by Abhishek Sharma 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

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What is streamline flow

Posted by Tripnesh Kumar 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Priya Dharshini ☺☺ 7 years, 4 months ago

streamline flow of a fluid in which its velocity at any point is constant or varies in a regular manner. It can be represented by streamlines. Also called: viscous flow Compare turbulent flow See also laminar flow.

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How to prove angle of friction=angle of repose

Posted by Shahkoi Alex 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

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Which is more elastic??? 1 steel 2 rubber band

Posted by Mohd Danish 7 years, 4 months ago

CBSE > Class 11 > Physics

5 answers

Rohit Singh 7 years, 4 months ago

Steel as it requires more stress to elogate than rubber....as youngs modulus= stress/strain...therefore more the numerator more the value of youngs modulus and more the youngs modulud nore is the elasticity

Priya Dharshini ☺☺ 7 years, 4 months ago

steel is more elastic than rubber because steel comes back to its original shape faster than rubber when the deforming forces are removed. Elasticity In Physics And In Common Life: In common life we label a substance as more elastic if it can be stretched more than others.

Aman Kumar 7 years, 4 months ago

Steel

Neha Singh 7 years, 4 months ago

Steel is more elastic than rubber band because it's young's modulus is higher than rubber band

6Thank You

Vinay Vinay 7 years, 4 months ago

steel

3Thank You

ANSWER

What are the factor effecting the value of G?

Posted by Jashan Deep 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Aman Pachouri 7 years, 4 months ago

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The mass of two bodies are double and distances is half . how will the gravitational force change

Posted by Jashan Deep 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

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Give the SI unit of g and G.

Posted by Jashan Deep 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Ankit Singh 7 years, 4 months ago

For small g its si unit is m/s2 and for G its si unit is Nm2 / kg2

6Thank You

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Define gravitation potential at a point

Posted by Jashan Deep 7 years, 4 months ago

CBSE > Class 11 > Physics

2 answers

Jashan Deep 7 years, 4 months ago

Thanks

Yogita Ingle 7 years, 4 months ago

Gravitational Potential Energy

Potential energy is due to the virtue of position of the object.
Gravitational Potential Energy is due to the potential energy of a body arising out of the force of gravity.
Consider a particle which is at a point P above the surface of earth and when it falls on the surface of earth at position Q, the particle is changing its position because of force of gravity.
The change in potential energy from position P to Q is same as the work done by the gravity.
It depends on the height above the ground and mass of the body.

4Thank You

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Is potential energy on the surface of earth is also zero?

Posted by Jashan Deep 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

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What is the height which the value of g is the same as at depth of R/2

Posted by Jashan Deep 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

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Is angular frequency scalar or vector??

Posted by Sanidhya Jadaun? 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Yogita Ingle 7 years, 4 months ago

A scalar is the one that is specified by its magnitude. It does not have any direction associated with it. Some of the scalar physical quantities are – Volume, Speed, Mass, Density, Number of Moles and Angular Frequency.

3Thank You

ANSWER

State clausius statement

Posted by Aditya Aditya 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

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What's Lewis theorem

Posted by Santosh Meher 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Hritik Gupta 7 years, 4 months ago

Lewis acid is an electron-pair acceptor. A Lewis base is any substance, such as the OH- ion, that can donate a pair of nonbonding electrons. A Lewis base is therefore an electron-pair donor. One advantage of the Lewis theory is the way it complements the model of oxidation-reduction reactions.

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Describe adibatic process.

Posted by Rohitman Jorwal 7 years, 4 months ago

CBSE > Class 11 > Physics

2 answers

Santosh Meher 7 years, 4 months ago

It's a process in which no flow of heat takes place between the system and the surroundings.

~Vihaan ~ 7 years, 4 months ago

When there is no exchange of heat between the system and the surrounding then the process is called adiabatic process...i.e delta q will be zero

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Why does a siphon fail to work in vacuum?

Posted by Ram Narayan Yadav 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

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Does the escape veloctiy very will mass

Posted by Jashan Deep 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Avantika Tayal 7 years, 4 months ago

No the escape velocity will not vary with mass..it depends only on acceleration of gravity,mass of the earth(not that of object),radius of earth...

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What is parking orbital

Posted by Jashan Deep 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Santosh Meher 7 years, 4 months ago

It's orbit. Parking orbit is that in which the period of revolution of a satellite is equal to the period of rotation of the earth about its axis.

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List one difference and similartity difference between gravitional and inertial mass

Posted by Jashan Deep 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Avantika Tayal 7 years, 4 months ago

Difference-gravitational mass follow the law of gravitation Inertial mass follow law of newton..

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If apple and earth pull each other with equal for why does earth the move toward apple

Posted by Jashan Deep 7 years, 4 months ago

CBSE > Class 11 > Physics

2 answers

Santosh Meher 7 years, 4 months ago

It is because of the mass. The mass of the earth is very very large as compared to the apple.

Varun Yadav 7 years, 4 months ago

Because earth mass is very large than apple

4Thank You

ANSWER

What is randons law of inertial viscous??

Posted by Pratham Dixit 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

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One dimentional elastic collision

Posted by Vijay Kumar 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

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The equation of a paricle started at t=0 is given by x=5sin(20t+pie/3) where x is in cm and t in sec. When does the particle first have maximum speed????

Posted by Yashi Goyal 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

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A block of mass 10kg is sliding on a surface inclined at a angle of 30 degree with the horizontal. Calculate acceleration of the block. The coefficient of kinetic friction between the block and the surface is 0.5

Posted by Om Malpote 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

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Derivation of 1st rotational equation

Posted by Adarsh Pathak 7 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

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When the acceleration becomes zero is the speed is changing

Posted by Tanveer Ahmed 7 years, 4 months ago

CBSE > Class 11 > Physics

4 answers

Yakshi ? 7 years, 4 months ago

Wow Ma'am!!!!awesome explanation ......it will definitely work???

Yakshi ? 7 years, 4 months ago

Acceleration is dv/dt. That means it is rate of change in velocity....in this case time can't be zero because the object is moving with time so.....according to me?......here change in velocity is zero and that's why acceleration would be zero....may be i m not wrong???it's my logic....

Nancy Rajput 7 years, 4 months ago

hope it help you ?

Nancy Rajput 7 years, 4 months ago

If the body moves with constant speed without changing the direction, the acceleration of the body is zero. ie, for constant velocity and no change in direction = no acceleration. Yes , the body have acceleration with zero velocity. for eg:- consider a body moving with some velocity in forward direction and it is stopped suddenly the velocity of the body becomes zero, but still the acceleration acts on it.

4Thank You

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Beco3 and baco3 which are more stable and why

Posted by Abhishek Dhull 7 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Nancy Rajput 7 years, 4 months ago

Thermal stability depends of carbonates depends on the size of the cation . The size of beryllium is smaller than the size of Barium , Hence , BeCO3 is unstable . Barium and carbonate have comparable size. Hence , BaCO3 is stable.