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Ask QuestionPosted by ?????? ?? 3 years, 11 months ago
- 2 answers
Yogita Ingle 3 years, 11 months ago
Elasticity is that property of the object by virtue of which it regain its original configuration after the removal of the deforming force.
Bhumika Panwar 3 years, 11 months ago
Posted by Arihant Jain 4 years ago
- 2 answers
Gagandeep Kaur 3 years, 11 months ago
Gaurav Seth 4 years ago
Work energy theorem states that the change in kinetic energy of an object is equal to the net work done on it by the net force.
Let us suppose that a body is initially at rest and a force 
is applied on the body to displace it through 
along the direction of the force. Then, small amount of work done is given by
Also, according to Newton's second law of motion, we have
where a is acceleration produced (in the direction of force) on applying the force. Therefore,
Now, work done by the force in order to increase its velocity from u (initial velocity) to v (final velocity) is given by
Hence, work done on a body by a force is equal to the change in its kinetic energy.
Posted by Sachin Kumar Verma 4 years ago
- 1 answers
Yogita Ingle 4 years ago
The unit of coefficient of viscosity can be understood by defining the coefficient of viscosity.
Following is the unit of coefficient of viscosity in different systems:
- SI unit: Ns.m-2
- CGS unit: poise
Posted by Kajal Verma 4 years ago
- 1 answers
Jagdish 4 years ago
Posted by Satish Bhardwaj 4 years ago
- 1 answers
Meghna Thapar 4 years ago
The perpendicular axis theorem states that the moment of inertia of a planar lamina about an axis perpendicular to the plane of the lamina is equal to the sum of the moments of inertia of the lamina about the two axes at right angles to each other, in its own plane intersecting each other at the point where the perpendicular axis passes through it.
Posted by Satish Bhardwaj 4 years ago
- 2 answers
Meghna Thapar 4 years ago
The value of 'g' that is gravity is greater at the poles because the gravitational pull is maximum at the poles and decreases as it comes down toward the equator. Because the force due to gravitational attraction between two bodies (the Earth and the object being weighed) varies inversely with the square of the distance between them, an object at the Equator experiences a weaker gravitational pull than an object at the poles.
Posted by Kajal Yadav 4 years ago
- 3 answers
Posted by Kajal Verma 4 years ago
- 3 answers
Gaurav Seth 4 years ago
scalar quantity :- the quantity which can be added or subtracted by algebraic rules. Or in simply , a quantity is said scalar quantity when it has only magnitude. here , mass , length and magnitude of acceleration are scalar quantity.
Vector quantity has magnitude as well as direction and it follows the triangle rule of addition. Here momentum is vector quantity because momentum is the product of mass and velocity and velocity is a vector .
Posted by Kajal Verma 4 years ago
- 3 answers
Yogita Ingle 4 years ago
The number of significant figures in 0.000040027 m2 is 5.
If the number is less than one, then the zeroes on the right of the decimal point (but left to the first non-zero) are insignificant. Hence, all four zeroes appearing before 4 are not significant figure. All zero between two non-zero digit are always significant. Hence, the remaining five digits are significant figures.
Posted by Ruksana Bano 4 years ago
- 2 answers
Yogita Ingle 4 years ago
The dimensional formula of Coefficient of Viscosity is given by,
M1 L-1 T-1
Where,
- M = Mass
- L = Length
- T = Time
Posted by ?????? ?? 4 years ago
- 3 answers
Alfez Ansari 4 years ago
Yogita Ingle 4 years ago
Hydraulic brakes work on the principle of Pascal’s law. According to this law whenever pressure is applied on fluid it travels uniformly in all the directions. Therefore when we apply force on a small piston, the pressure gets created which is transmitted through the fluid to a larger piston. As a result of this larger force, uniform braking is applied on all four wheels. As braking force is generated due to hydraulic pressure, they are known as hydraulic brakes. Liquids are used instead of gas as liquids are incompressible.
Posted by Aman Yadav 4 years ago
- 1 answers
Yogita Ingle 4 years ago
According to Pascal’s law, “The external static pressure applied on a confined liquid is distributed or transmitted evenly throughout the liquid in all directions”.
Following is the formula of Pascal law:
| F = PA |
Where,
- F is the force applied
- P is the pressure transmitted
- A is the cross-sectional area
Posted by Sachi Chauhan 4 years ago
- 0 answers
Posted by Ranjan Borah 4 years ago
- 0 answers
Posted by Ranjan Borah 4 years ago
- 1 answers
Posted by Ranjan Borah 4 years ago
- 2 answers
Posted by Sakthi Saminathan 4 years ago
- 1 answers
Posted by Chamkaur Singh 4 years ago
- 0 answers
Posted by Aseem Mahajan 4 years ago
- 2 answers
Posted by Aadya Singh 4 years ago
- 2 answers
Yogita Ingle 4 years ago
Equilibrium means no net force is acting.An object can be in linear motion if the forces acting on it are balanced forces and due to this it is undergoing uniform linear motion.
Posted by Aadya Singh 4 years ago
- 4 answers
Posted by Aadya Singh 4 years ago
- 3 answers
![](https://i.ibb.co/hg69MMs/20201123-144715.jpg")
Posted by Aadya Singh 4 years ago
- 2 answers
Aseem Mahajan 4 years ago
Itna kaunn solve kre
Posted by Dharmendra Pratap Singh Singh 3 years, 6 months ago
- 1 answers
Sia ? 3 years, 6 months ago
The physical world is highly complex. It has vast orders of magnitude in respect of mass, length and time. Even then all the physical phenomena can be explained in terms of few basic principles of physics. That is, it is possible to comprehend nature in terms of few basic laws in spite of its vast complexities. This is what Einstein meant to say.
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