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To study the conservation of energy of a ball rolling down on an inclined plane

Posted by Ranringpeimi Rainam 4 years ago

CBSE > Class 11 > Physics

0 answers

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What is Poisson s ratio

Posted by ☺️☺️ ☺️☺️ 4 years ago

CBSE > Class 11 > Physics

1 answers

Roshan Kumar 4 years ago

Poisson's ratio is the ratio of lateral strain to the longitudinal strain. It has no units.

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Dimensions for angle

Posted by ☺️☺️ ☺️☺️ 4 years ago

CBSE > Class 11 > Physics

1 answers

Roshan Kumar 4 years ago

Dimension less quantity

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What is linear velocity profile?

Posted by Snekha Sundaran 4 years ago

CBSE > Class 11 > Physics

1 answers

Roshan Kumar 4 years ago

It turns out (we will prove this at a later date) that the velocity profile, u(y) is linear, i.e. u(y) = Vy/h. ... In a simple 2-D shear flow such as this, the shear stress is directly proportional to the slope of the velocity profile. In fact, the constant of proportionality is the coefficient of viscosity itself!

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If y=sinX, then dy/dx

Posted by Riya Roy 4 years ago

CBSE > Class 11 > Physics

3 answers

Sudeep Singh 4 years ago

Dy/Dx = CosX

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D S 4 years ago

Cos x

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Gaurav Agarwal 4 years ago

dy/dx = CosX

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Difference between stress and strain?

Posted by Snekha Sundaran 4 years ago

CBSE > Class 11 > Physics

2 answers

Anjan Karthi 4 years ago

Stress is the restoring force coming from within an elastic object acting per unit area of the object. Whereas, strain is the change in the physical arrangement or the configuration in an elastic object when it is subjected to external force.

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Vaghela Rahul 4 years ago

The stress strain graphs for material A and B are shown

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In a figure particle moves along a circular path of radius r . It starts from point A and moves anticlockwise. Find the distance traveled by the particle as it moves from A to B

Posted by Uma Shree 4 years ago

CBSE > Class 11 > Physics

1 answers

Gaurav Agarwal 4 years ago

S = O R ; O is in radian

3Thank You

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Innovalus takdum oscillation a police officers fires A bullet of mass 50 gram with speed 200 metre per second on soft plywood of thickness to CM the bulletin images with only 10% of its initial kinetic energy what is the emergent kinetic energy of the bullet from the plywood

Posted by Rohit Kumar 4 years ago

CBSE > Class 11 > Physics

0 answers

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Why terminal velocity is directly proportional to viscosity in relation F=6πvñr. Explain.

Posted by Harmanpreet Kaur 4 years ago

CBSE > Class 11 > Physics

0 answers

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Prove that jcap.icap=j.j=k.k=1

Posted by Amulya Dubey 4 years ago

CBSE > Class 11 > Physics

0 answers

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What is Tension and spring force

Posted by Tanisha Upadhayay 4 years ago

CBSE > Class 11 > Physics

1 answers

Snekha Sundaran 4 years ago

The tension force is the force that is transmitted through a string, rope, cable or wire when it is pulled tight by forces acting from opposite ends. ... The spring force is the force exerted by a compressed or stretched spring upon any object that is attached to it.

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Dimensions of coeffcient of viscosity are:

Posted by Md Zeeshan 4 years ago

CBSE > Class 11 > Physics

3 answers

Deepak Kumar Meena 3 years, 8 months ago

ML 1 T 1

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Deepak Rathore 4 years ago

Ml-1t-1

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Anjan Karthi 4 years ago

F = 6πηrv. Therefore, coefficient of viscosity η = [MLT^-2] / [L] [LT^-1] = [ML^-1T^-1]. //

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100/tan40°

Posted by Apoorva N 4 years ago

CBSE > Class 11 > Physics

0 answers

ANSWER

MOI of Earth

Posted by Sundaram Katare 4 years ago

CBSE > Class 11 > Physics

1 answers

Md Zeeshan 4 years ago

If we think of the earth as a solid sphere rotating about its center, the moment of inertia is given by: I=25MR2

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An object is projected some velocity at 45°angle from horizontal surface of the earth if maximum height is 10√2 meter than find out 1. Velocity of projectile 2. Range 3. Time of flight

Posted by Abhishek Gupta 4 years ago

CBSE > Class 11 > Physics

1 answers

Gaurav Agarwal 4 years ago

U = 20√(√2) metre per second R= 40√2 metre T=2√{2√(2)} seconds

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A jet on an aircraft carrier at 30m/ s. It stop in 2.0 s. What is the displacement of the plane when it stop?

Posted by Aditi Kumari 4 years ago

CBSE > Class 11 > Physics

4 answers

Sachin Raghav 4 years ago

V=displacement×Time, therefore displacement=V × t = 30×2= 60m

1Thank You

Sundaram Katare 4 years ago

Displacement = 30 m By using , S = - u^2/2a

2Thank You

Sundaram Katare 4 years ago

Displacement= 30 m

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Anjan Karthi 4 years ago

V = Disp/t. Therefore, Disp = V × t = 30 × 2 = 60m.

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Two bodies of masses 1g and 4g are moving with equal kinetic energy. The ratio of the magnitudes of their moments is

Posted by Tanishk Chaudhary 4 years ago

CBSE > Class 11 > Physics

1 answers

Anjan Karthi 4 years ago

K = P^2/2m. Therefore, P^2 ~ m. Therefore, m1/m2 = P1^2/P2^2. P1/P2 = √1g/4g = 1:2.//

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A car is moving with a speed of 72km/h. Driver of a car applies break & bring it to the rest in 1second. Assuming that the retardation to be uniform, find the retardation & calculate the distance before it comes to rest.

Posted by Paru ? 4 years ago

CBSE > Class 11 > Physics

1 answers

Sundaram Katare 4 years ago

a= -20 m/s^2 S= 10 m

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Two trains A and B are moving with a speed 100km/h in opposite direction. What is the relative velocity of the train A with respect to train B?

Posted by Paru ? 4 years ago

CBSE > Class 11 > Physics

1 answers

Gaurav Agarwal 4 years ago

200km/hr

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Find tension in the string and normal reaction excted the floor in equaillibrium

Posted by Hacker Baba 4 years ago

CBSE > Class 11 > Physics

0 answers

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Explain check wheather the two vector zero or not ?

Posted by Sindhuswari Mishra 4 years ago

CBSE > Class 11 > Physics

0 answers

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What is projectile?Deduce expression for time of flight and vertical range.

Posted by Ashish Maru 4 years ago

CBSE > Class 11 > Physics

1 answers

Snekha Sundaran 4 years ago

An object which is moving under the effect of gravity is called gravity. The motion under the effect of gravity only is called projectile motion.

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Determination of percentages of water of crystallization in barium chloride

Posted by Sujal Kumar 4 years ago

CBSE > Class 11 > Physics

1 answers

Anjan Karthi 4 years ago

Formula of barium sulphate is BaCl2. 2H2O. Therefore, percentage composition of water = [ Mass of water in the compound / Molar mass of compound ] × 100 = 3600/137 = 26.27 %.

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Ques- According to second law of Newton, force is the cause and the outcome is: a) time b) velocity c) momentum d) acceleration

Posted by Nasra Javed 4 years ago

CBSE > Class 11 > Physics

1 answers

Anjan Karthi 4 years ago

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Find an expression for maxi. Speed of circular motion of a car in a circular horizontal track of radius R the coefficient of a static friction between the car tyres and road along the surfaces is Ms

Posted by Ingila Jahan 4 years ago

CBSE > Class 11 > Physics

2 answers

Anjan Karthi 4 years ago

V = √Ms R g.

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Devansh Pandey 4 years ago

V = √u rg

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Find the angle between the vector A= 4î+6j^-3k^ and vector B=-2î-5j^+7k^

Posted by Ganga Maya Rai 4 years ago

CBSE > Class 11 > Physics

2 answers

Snekha Sundaran 4 years ago

148.795°

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Sambit Kumar 4 years ago

Lol?

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Find the angle between the vectors Vector A=4i^+6j^-3k^ Vector B=2i^-5j^+7k^

Posted by Arisha Fatma 4 years ago

CBSE > Class 11 > Physics

1 answers

Snekha Sundaran 4 years ago

148.795°

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A body is initially at rest. It understand one-dimensional motion with constant acceleration .the power delivered to it at time t is proportional to

Posted by Shubham Yadav 4 years ago

CBSE > Class 11 > Physics

0 answers

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When a wire is stretched by a sudden force it's elongation is 'x', if the second wire is same material has 4 times the length and double the radius of first wire and is stretched by same force as before .Find the elongation

Posted by Vikesh Vikesh 4 years ago

CBSE > Class 11 > Physics

0 answers

ANSWER

The scalar quantity is

Posted by Alkama Parveen 4 years ago

CBSE > Class 11 > Physics

4 answers

Vikas Kushwah 4 years ago

It quantity have only magnitude but not direction

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Naman Patel 4 years ago

Quantity that have magnitude only and without direction

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Mannu Dahiya 4 years ago

It is the quantity which have magnitude but no direction

3Thank You

Anjan Karthi 4 years ago

Any physical quantity which can be measured only in terms of MAGNITUDE and direction does not affect it's measurements. Eg :- Length, Mass, Time, Temperature, etc.

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