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Newtons first, second and third law defination

Posted by Hemant Gurjar 5 years, 11 months ago

2 answers

Jai Gaba 5 years, 11 months ago

Ist law of newton- a body at rest will reamain at rest unless or untill any external force applied on it.. 2nd law of newton- the net force experienced by the body is directly proportional to chng in momentum.. 3rd law of newton- every action has equal and opposite reaction...

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Yogita Ingle 5 years, 11 months ago

Newton’s first law of motion states that “A body at rest or uniform motion will continue to be at rest or uniform motion until and unless a net external force acts on it”.

According to Newton’s second law of motion, the net force experienced by a body is directly proportional to the rate of change of momentum of the body.

According to Newton’s third law of motion, for every action, there is an equal and opposite reaction.

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How will u define that sun is a pure black body??

Posted by Kunal Pandey 5 years, 11 months ago

CBSE > Class 11 > Physics

5 answers

Kunal Pandey 5 years, 11 months ago

I can also ask my questions on WhatsApp and Messenger!

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Kunal Pandey 5 years, 11 months ago

I don't think it is help full for my studies

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Kunal Pandey 5 years, 11 months ago

Too bouring app

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Jivisha Srivastava 5 years, 11 months ago

Any radiation hitting the sun is scattered and absorbed since it has no solid surface

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Jivisha Srivastava 5 years, 11 months ago

It's based on the concept of black body radiation

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Liquids and gases can't propagate transverse waves. Why ?

Posted by Aayu... A?V 5 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Jivisha Srivastava 5 years, 11 months ago

In lipids and gases there is no mechanism for driving motion perpendicular to the propagation of wave

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what are general guidelines for using symbol in S.I.?

Posted by Aayu... A?V 5 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Jivisha Srivastava 5 years, 11 months ago

Units named after the scientist should be written in capital eg Newton else could be lowercase like m for meter 2.no use of punctuation s in btw?

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A body weighs 63N on the surface of earth. What is the gravitational force on it due to the earth at a height equal to half the radius of earth ?

Posted by Aayu... A?V 5 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Hemant Gurjar 5 years, 11 months ago

12N

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Define emissivity?

Posted by Jivisha Srivastava 5 years, 11 months ago

CBSE > Class 11 > Physics

3 answers

Kunal Pandey 5 years, 11 months ago

When e=0 the that body is called white body and when e=1 then that body is called black body

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Kunal Pandey 5 years, 11 months ago

And it is also measured from 0 to 1

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Kunal Pandey 5 years, 11 months ago

Emissivity is defined as a infrared energy radiated from a body.

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What is torsional pendulum?

Posted by Jivisha Srivastava 5 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Kunal Pandey 5 years, 11 months ago

It is just an oscillator..

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Poiseuille's formula

Posted by Jivisha Srivastava 5 years, 11 months ago

CBSE > Class 11 > Physics

2 answers

Aayu... A?V 5 years, 11 months ago

I hope....it will help u

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Aayu... A?V 5 years, 11 months ago

The Poiseuille’s law states that the flow of liquid depends on following factors like the pressure gradient (∆P), the length of the narrow tube (L) of radius (r) and the viscosity of the fluid (η) alongwith relationship among them.

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Definition of energy

Posted by Nishant Chauhan 5 years, 11 months ago

CBSE > Class 11 > Physics

3 answers

Farhat Shaikh Shaikh 5 years, 11 months ago

The ability or capacity of doing work of any machine or human body is called energy its SI unit is joule.

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Aayu... A?V 5 years, 11 months ago

Hope...it will help u...

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Aayu... A?V 5 years, 11 months ago

power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.

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points) An artificial satellite is revolving around a planet of mass M and radius R, in a circular orbit of radius r. From Kepler’s third law about the period of a satellite around a common central body, square of the period of revolution T is proportional to the cube of the radius of the orbit r. Show using dimensional.

Posted by Vicky Chandravanshi 5 years, 11 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Angula momentum of body is defined as a product of 1

Posted by Saloni Suryavanshi 5 years, 11 months ago

CBSE > Class 11 > Physics

4 answers

Alok Dewahe 5 years, 11 months ago

Moment of linear momentum

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Priyanka Maurya 5 years, 11 months ago

Position vector (r) * linear momentum (p)

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Farhat Shaikh Shaikh 5 years, 11 months ago

But in case of angle it is mass into angular velocity

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Farhat Shaikh Shaikh 5 years, 11 months ago

Mass and velocity

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What is a Carnot's engine? What is the it's efficiency?

Posted by Kalwith D. Sangma 5 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Yogita Ingle 5 years, 11 months ago

Carnot engine

A Carnot engine is named after Carnot scientist.
It is a reversible heat engine operating between two temperatures.
It has a maximum efficiency which no other engine can have.

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Name a device used to measure the fluid flow. On which principle it works. Derive its expression

Posted by Aayu... A?V 5 years, 11 months ago

CBSE > Class 11 > Physics

2 answers

Aditya Narayan Singh 5 years, 11 months ago

Venturi meter

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Yug Bhanushali 5 years, 11 months ago

Venturi meter

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Two turning forks of freq. n' and n2 produce n beats per second. If n2 and n are known, n' may be

Posted by Joginder Singh 5 years, 11 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

To investigate the differant physical quanties and their measure

Posted by Prahlad Vishwakarma 5 years, 11 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

The average mass that must be lifted by a hydraulic press 80 kg. If the radius of the larger piston is five times of the smaller piston,what is the minimum forcethat must be applied

Posted by Tanya Saxena 5 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Yogita Ingle 5 years, 11 months ago

using Pascal law
A₂=5A₁

F₂=80 ×9.8

F₁ / A₁ =F₂ /A₂

F₁= 8 ×98 / 5

F₁=156.8 N

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calculate the average kinetic energy for one molecule of gas at constant volume

Posted by Aayu... A?V 5 years, 11 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

find the angle of projection at which the horizontal range maximum height of projectile are equal

Posted by Aayu... A?V 5 years, 11 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

The radius of the earth is R and it's angular velocity of rotation is omega. If the earth suddenly stops rotating then the change in the value of g at a place on the equator will be (a). Zero (b). Romega (c). R/omega square (d). R omega square

Posted by Sakshi Chandra 5 years, 11 months ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Estimate the acceleration due to gravity at any point on the surface of Earth due to its rotation.

Posted by Yash Chandekar 5 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Keshav Singla 5 years, 11 months ago

9.8

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Physics sample paper

Posted by Piyush Yadav 5 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Sanjay Suthar 5 years, 11 months ago

Visit mycbseguideapp

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The linear momentum of a body is decreased by 10 percent. What is the percentage in its kinetic energy.

Posted by Akram Ansari 5 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Uttam Kumar Paul 5 years, 11 months ago

p=mv Since mass is constant v decreases by 10% Now apply KE=1/2mv'^2

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Simple pendulum time period

Posted by Tanvi Sharma 5 years, 11 months ago

CBSE > Class 11 > Physics

2 answers

Tanvi Sharma 5 years, 8 months ago

Thank u

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Rishabh Pathak 5 years, 11 months ago

T=2π/w T=2π√I/mgL T=2π√mL/mgL T=2π√L/g

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What do you mean by elasticity?

Posted by Karan Dhillon 5 years, 11 months ago

CBSE > Class 11 > Physics

3 answers

Divanshu Rawat 5 years, 11 months ago

It is the property of the body by virtue of which it regains it initial configurations after removal of deforming force

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Yogita Ingle 5 years, 11 months ago

The property of matter by virtue of which it regains its original configuration after removing the deforming force is called elasticity. All objects in nature are elastic and no effects in nature are rigid or plastic.

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Farhat Shaikh Shaikh 5 years, 11 months ago

The property of the material by virtue of which it regain its originals shape and size after being stretched or compressed this property of material is called elasticity.

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What is Mpemba effect?

Posted by Satveer Kaur 5 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Yogita Ingle 5 years, 11 months ago

The Mpemba effect is a process in which hot water can freeze faster than cold water. The phenomenon is temperature-dependent. There is disagreement about the parameters required to produce the effect and about its theoretical basis.

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Hydraulic lift

Posted by Kartik Dhir 5 years, 11 months ago

CBSE > Class 11 > Physics

1 answers

Shree Pandey 5 years, 11 months ago

It is used to lift a heavy load with a small force .it consist of two cylinders A and B of coss sectional area A1 ana A2 connected by a horizontal take pistons are fixed in both cylinders and the ststem is filled with fluid .the load which is to be filled is placed on piston A and force is applied on piston B. If force is applied on piston A,then P1=f1\A1 Let f2 is the force which acts on pistonB , then P1=f2\A1 From pascal's law p1=p2 F1\A1=f2\A2=f1\f2=A1\A2 A1<A2=A1\A2=<1 F1\F2<1= f1<f2 Notes=.…….. A number of device such as hydraulic lift and hydraulic breaks I know this very hard but ek likh lenge toh phir diffcult nhi hoga Jaisa likha hai Vaisa hi likho FIR samajh mein a jaega

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Explain the law of floatation???

Posted by Ikchha Patkar 5 years, 11 months ago

CBSE > Class 11 > Physics