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Why is pull easier than push

Posted by Jasmer Panjetha 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Keshav Paliwal 8 years, 1 month ago

When we push, a component of force adds to weight and frictional force increases so pull is easier

ANSWER

Drive energy equal to mass

Posted by Dhiraj Kumar 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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Sir did gravity exist at atomic level??. If yes then does it has a effect on the orientation of some atomic particles??

Posted by Abhijeet Dwibedi 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Rahul Poddar 8 years, 1 month ago

As we study gravitational force exist between anything which has mass so, gravitational force exist between atomic level but the mass of atomic particle is very small or negligible mass like electron it's (10^-31kg) it is very low if we find gravitational force between two electron it's nearly (10^-50) N which is very very small and almost negligible so, gravitational force exist between atomic level but it is negligible so it doesn't effect it's orientation

4Thank You

ANSWER

Why 2law called real law of motion

Posted by Akshay Kumar 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Bhawna Sain 8 years, 1 month ago

Because by 2nd law we describe 1 and 3 of motion

ANSWER

What is the gravitation

Posted by Sumit Bansal 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Mahima Sharma 8 years, 1 month ago

Attractive force experienced by an object due to earth

ANSWER

What is gravitational potential energy

Posted by Kawal Bariya 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Debashis Dhibar 8 years, 1 month ago

To bring and object or body from the infinity to inside a gravitational field, some work has to be done this work is known as gravitational potential

ANSWER

Explain the variation of g with rotation of earth?

Posted by Sandeep Rawat 8 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Nikhil Science 8 years, 1 month ago

Acceleration due to gravity decreases due to rotation of earth.

Rahul Poddar 8 years, 1 month ago

g'=g-Rw^2cos^2 lambda here, w=omega

ANSWER

Why time always flows to forward and never backward?

Posted by Sandeep Rawat 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Debashis Dhibar 8 years, 1 month ago

Time always flow forward not backwards becauseTime is relative not absolute which is proved by Einstein in the laws of Relativity

ANSWER

Please explain the hydraulic brakes?

Posted by Sandeep Rawat 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Debashis Dhibar 8 years, 1 month ago

Hydraulic brakes are very complex mechanism when the brakes are applied there is a hollow tube inside a bigger hollow tube which is filled with air or hydraulic liquid through a strong pressure so when the gap is filled the smaller tube gets out of the bigger tube and strikes with a huge amount of force At the wheel and retardation is achieved

ANSWER

Prove that the height of mountain on earth cannot be more than 10 km?

Posted by Sandeep Rawat 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Rahul Poddar 8 years, 1 month ago

Elastic limit of earth is 3×10^8N, since pressure exerted by the mountain is balanced by elastic limit of earth so, pgh is less than 3×10^8N/m2, density of mountain (p)=3×10^3kg/m3, so, pgh <3×10^8Nm^-2......3×10^3×10h <3×10^8.....10^4h <10^8N. ..h <10^4m..Therefore h <10000m or h <10km

ANSWER

What is equibrilium

Posted by Purva Ujjainwal 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Rakhi Pundir 8 years, 1 month ago

Equilibrium in physics means a situation where net force on the body is 0.

ANSWER

What is pseudo force?

Posted by Vikrant Dabas 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

What is the value of g on earth

Posted by Somvir Somvir 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Sangam Kumar Pathak 8 years, 1 month ago

The value of 'g' on the earth is 9.8 m/s^

ANSWER

What do we mean by angular velocity

Posted by Anjali Chadha 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Sakshi Malik 8 years, 1 month ago

Rate of change of angular position of a rotating body.

ANSWER

if earth contracts to half of its radius, what would be the length of the day?

Posted by Rupa Devi 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Rahul Poddar 8 years, 1 month ago

T'=T/2

ANSWER

Work done of spring when it is already stress from its initial position to final position?

Posted by Atul Atul 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Rahul Poddar 8 years, 1 month ago

W=1/2kx^2

ANSWER

second law of Kepler

Posted by Shubham Jhade 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Rahul Poddar 8 years, 1 month ago

2nd law is also known as law of areas it states that the areal velocity of an planet around the sun is constant at any instant of time but linear velocity is different

5Thank You

ANSWER

Difference between stress and strain

Posted by Satyam Kumar 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Rahul Poddar 8 years, 1 month ago

Stress is an opposite reaction of pressure of an body inside but strain is the change in shape stress exist without strain but strain never exist without stress

ANSWER

Prove dimensionally T=2 pie under root l upon g

Posted by Bhoomi Agrawal 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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A body weight 4.5kgwt on the surface of the Earth. How much will be the weight on the surface of the planet whose mass is 1/9 mass of the Earth and radius half that of the Earth

Posted by Sunita Meena 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Rahul Poddar 8 years, 1 month ago

g'=27g, w=119.07kg

ANSWER

When the angular velocityof a uniformly rotating body has increased thrice, the resultant of forces applied to it increases by 60N .find the acceleration of the body in the two cases. The mass of the body ,m =3kg

Posted by Chavan Chavan 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Define moment of inertia?

Posted by Sahiil Khan 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Varun Banda 8 years, 1 month ago

Moment of inertia I is defined as the ratio of the net angular momentum L of a system to its angular velocity ω around a principal axis.

ANSWER

A ball is dropped from a height of 200 m.calculate the ratio of the displacements for first three seconds.

Posted by Satavisha Ray 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

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I want to know about projectile motion with definition

Posted by Shubham Kumar 8 years, 1 month ago

CBSE > Class 11 > Physics

0 answers

ANSWER

Siunit of density

Posted by Pavan Baliga 8 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Pooja Choudhary 8 years, 1 month ago

Kilogram cubic per meter(kg/m3)

Himanshi Verma 8 years, 1 month ago

Kilogram per cubic metre.kg/m3

4Thank You

ANSWER

What will be the weight of a100kg person 10km above the surface of Earth?

Posted by Saurabh Kumar 8 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Pooja Choudhary 8 years, 1 month ago

99.59kg

Rahul Poddar 8 years, 1 month ago

99.59 kg

ANSWER

Prove that distance covered by body in tth sec is D=u+a÷2(2t-1)

Posted by Jaswant Singh Rathore 8 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Vaibhav Yadav 8 years, 1 month ago

Subtract distance covered in (t-1) th sec from distance covered in t th sec by using eqn s=ut+1/2at^2

ANSWER

Why gravitaional potential energy is negative

Posted by Navjot Kaur 8 years, 1 month ago

CBSE > Class 11 > Physics

2 answers

Rahul Poddar 8 years, 1 month ago

As I understand that the gravitational potential is 0 at infinity becz it has inverse r and it is 0 at highest point then it must be less than 0 at lower point than infinity so, gravitational potential is negative

Lokesh Naidu 8 years, 1 month ago

Beacause u r idiot