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Finally exams r over ??????????????????????

Posted by Me Souhardee❤️ 8 years, 4 months ago

CBSE > Class 11 > Physics

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What is calculas..?

Posted by Suresh Kumar 8 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Arjun Gupta 8 years, 4 months ago

To solving differentiation and integration is a physical calculus

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To what height should a liquid be filled up in a cylindrical vessel of radius R such that the total thrust on the vertical surface is equal to the thrust at the bottom of the vessel.

Posted by Sayanika Mitra 8 years, 4 months ago

CBSE > Class 11 > Physics

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discuss and derive the expression for the orbital velocity and time period of a satellite around the Earth in a fix/particular orbit.

Posted by Yash Rohilla 8 years, 4 months ago

CBSE > Class 11 > Physics

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Find height of satellite from the surface of earth

Posted by Pika Pika 8 years, 4 months ago

CBSE > Class 11 > Physics

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A bullet of mass20g is found to pass two points 30m apart in a time interval of 4s. calculate the K. E. of bullet if it moves wth constant speed.

Posted by Bharti Sinha 8 years, 4 months ago

CBSE > Class 11 > Physics

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Why shockers used in cars

Posted by Varun Singh 8 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

As K 8 years, 4 months ago

For increasing impulse. For safety

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If R is the maximum horizontal range of a particle, then the greatest height attained by it is

Posted by Lakshmi Kumari 8 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Manjeet Singh 8 years, 4 months ago

1/2 u^2sin^2 theita /2

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Why does wind flow

Posted by Vedant Agrawal 8 years, 4 months ago

CBSE > Class 11 > Physics

2 answers

Manjeet Singh 8 years, 4 months ago

They flow from higher pressure area today lowest pressure area to maintain pressure

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Ashish Soni 8 years, 4 months ago

For maintaining pressure in environment

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What's centrifugal force?

Posted by Mahi Singh 8 years, 4 months ago

CBSE > Class 11 > Physics

3 answers

As K 8 years, 4 months ago

Simply we can say that the force exerted by centre on particle or vice versa of centripetal force. Example washing machine and mixer machine in these apparatus force exerted by centre on particle lying on circumference.

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Manjeet Singh 8 years, 4 months ago

They force which is responsible for circular motion ?

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Amar Kumar 8 years, 4 months ago

Centrifugal force is the tendency of an object moving in a circle to travel away from the center of the circle.

Centrifugal force is the outward force, away from the axis of rotation, acting on a revolving object.Centrifugal force is the tendency of an object moving in a circle to travel away from the center of the circle.

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Two factors on which com does not depend?

Posted by Mayank Sharma 8 years, 4 months ago

CBSE > Class 11 > Physics

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A particle moves along the X-axis from x=0 to x=5 under the influence of a force given by F=7-2X+3X^2. Calculate the work done in doing so.

Posted by Soumyodeep Chowdhury 8 years, 4 months ago

CBSE > Class 11 > Physics

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A uniform steel bar of mass 5 kg and the length 1.5 m is supported at its two ends. A mass of 2 kg is suspended from apt 0.3m from the left end of the bar. Determine the reactions at each end of steel bar

Posted by Lalita Verma 8 years, 4 months ago

CBSE > Class 11 > Physics

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What is Bernoulli's therom

Posted by Divyanshu Singh 8 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Amar Kumar 8 years, 4 months ago

Bernoulli’s theorem states that whenever there is an increase in the speed of the liquid, there is a simultaneous decrease in the potential energy of the fluid or we can say that there is a decrease in the pressure of the fluid.

Basically, it is a principle of conservation of energy in the case of ideal fluids. If the fluid flows horizontally such that there is no change in the gravitational potential energy of the fluid then increase in velocity of the fluid results in a decrease in pressure of the fluid and vice versa.

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Sir please explain me rotatry motion

Posted by Aditya Raj Singh 8 years, 4 months ago

CBSE > Class 11 > Physics

2 answers

Alok Sharma 8 years, 4 months ago

The type of motion of an object in which it's particle moves in circular orbits with same angular velocity but different linear speed is called rotational motion.And the axis along which particle revolve in circular orbits is called axis of rotation.

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Amar Kumar 8 years, 4 months ago

A rotation motion is a motion that takes place around a fixed axis. A worm drive is an example of rotational motion. Both the worm and the worm gear—is rotating on its own axis.

Rotatary Motion of a planets on it's axis.

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What is surface tention?

Posted by Jyoti Shah 8 years, 4 months ago

CBSE > Class 11 > Physics

2 answers

Manjeet Singh 8 years, 4 months ago

The force acting at 90 degree along 1cm of length

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Amar Kumar 8 years, 4 months ago

Surface Tension: The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension. The molecules at the surface do not have other like molecules on all sides of them and consequently they cohere more strongly to those directly associated with them on the surface. This forms a surface "film" which makes it more difficult to move an object through the surface than to move it when it is completely submersed. Surface tension is typically measured in dynes/cm.

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Physical

Posted by Astha Maurya 8 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Manjeet Singh 8 years, 4 months ago

External environmental bodies

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Find the speed if distance is 40 and time is 20?

Posted by Deepika Deona 8 years, 4 months ago

CBSE > Class 11 > Physics

3 answers

Pika Pika 8 years, 4 months ago

Velocity 2ms'1

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Manjeet Singh 8 years, 4 months ago

If it is in m and s then 2m/s

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Akshay Satish 8 years, 4 months ago

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At what height above the earth surface the value of g is 1/2 of its value on earth surface? Given r=6400km.

Posted by Nemar Das 8 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Rohit Parbat 8 years, 4 months ago

At r/4 the value of g is 1/2 of its value on earth surface

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From a square sheet of uniform density a portion is removed . Find the centre of Mass of remaining portion.

Posted by Bharti Singh 8 years, 4 months ago

CBSE > Class 11 > Physics

0 answers

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Derivation of series combination of spring

Posted by Pragya Smriti 8 years, 4 months ago

CBSE > Class 11 > Physics

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Exam type questions

Posted by Kuldeep Kumar 8 years, 4 months ago

CBSE > Class 11 > Physics

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Estimate the rate at which ice melts in a wooden box 0.04m thick of inside measurement 0.6m×0.4m×0.4m assume that outside temperature is 300 K and thermal conductivity of wood is 0.08W/m/K and latent heat of fusion of ice =3.36×100000 J/kg

Posted by Namrata Badiger 8 years, 4 months ago

CBSE > Class 11 > Physics

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What is newton 4 law of motion

Posted by Nikhil Bajaj 8 years, 4 months ago

CBSE > Class 11 > Physics

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What are ductile?

Posted by Namrata Badiger 8 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Ashish Soni 8 years, 4 months ago

The property of an element for converting into wire

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What is vector law of addition?

Posted by Shubham Upadhyay 8 years, 4 months ago

CBSE > Class 11 > Physics

1 answers

Nikhil Bajaj 8 years, 4 months ago

Triangle law of vector addition states that when two vectors are represented by two sides of a triangle in magnitude and direction taken in same order then third side of that triangle represents in magnitude and direction the resultant of the vector

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Two exactly similar wires of steel

Posted by Aditya Maurya 8 years, 4 months ago

CBSE > Class 11 > Physics