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Ask QuestionPosted by ?Ritesh Gupta? 3 years, 10 months ago
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Posted by Shubham Kumar Modanwal 3 years, 10 months ago
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Yogita Ingle 3 years, 10 months ago
Relative density of gold = ρ(gold)/ρ(water) = 19.32/1 = 19.32
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Abirami Kamalbabu 3 years, 10 months ago
Yogita Ingle 3 years, 10 months ago
Differentiation is the essence of Calculus. A derivative is defined as the instantaneous rate of change in function based on one of its variables. It is similar to finding the slope of a tangent to the function at a point.
Integration is a method to find definite and indefinite integrals. The integration of a function f(x) is given by F(x) and it is represented by:
where
R.H.S. of the equation indicates integral of f(x) with respect to x
F(x) is called anti-derivative or primitive.
f(x) is called the integrand.
dx is called the integrating agent.
C is the constant of integration or arbitrary constant.
x is the variable of integration.
Posted by Laya Varshini.P ... 3 years, 10 months ago
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Yogita Ingle 3 years, 10 months ago
An inelastic collision is such a type of collision that takes place between two objects in which some energy is lost. In the case of inelastic collision, momentum is conserved but the kinetic energy is not conserved. Most of the collisions in daily life are inelastic in nature.
When two objects collide under inelastic condition. The final velocity with which object move is given by-
V=(M1V1+M2V2)(M1+M2)
Where,
- V= Final velocity
- M1= mass of the first object in kgs
- M2= mas of the second object in kgs
- V1= initial velocity of the first object in m/s
- V2= initial velocity of the second object in m/s
Posted by Laya Varshini.P ... 3 years, 10 months ago
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Yogita Ingle 3 years, 10 months ago
Friction is defined as the force that opposes the motion of a solid object over another. There are mainly four types of friction: static friction, sliding friction, rolling friction, and fluid friction. Friction and normal force are directly proportional to the contacting surfaces and it doesn’t depend on the hardness of the contacting surface. With the increase in relative speeds, the sliding friction reduces whereas fluid friction increases with the increase in the relative speed, also fluid friction is dependent on the viscosity of the fluid.
Following are the friction types which depend on the types of motion:
- Static Friction: Static friction is defined as the frictional force that acts between the surfaces when they are at rest with respect to each other.
- Sliding Friction: Sliding friction is defined as the resistance that is created between any two objects when they are sliding against each other.
- Rolling Friction: Rolling friction is defined as the force which resists the motion of a ball or wheel and is the weakest types of friction.
- Fluid Friction: Fluid friction is defined as the friction that exists between the layers of the fluid when they are moving relative to each other.
Posted by Nikku Ad 3 years, 10 months ago
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Rohit Rai 3 years, 10 months ago
Bhargav Vakharia 3 years, 10 months ago
Nikku Ad 3 years, 10 months ago
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Nikku Ad 3 years, 10 months ago
Posted by Ayushi Harariya 3 years, 10 months ago
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Yogita Ingle 3 years, 10 months ago
>Weight of the body,W=63 N
Acceleration due to gravity at height h from the Earths surface is given by the relation:
g′ =g/ (1+h/Re)2
Substituting h=Re/2,
g′=4g/9
Weight of body of mass m at height h is given as:
W′=mg′
=4/9 mg
=4/9×63=28 N
Posted by Aniket Ranjan 3 years, 10 months ago
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Yogita Ingle 3 years, 10 months ago
Gravitational potential energy is the energy possessed or acquired by an object due to a change in its position when it is present in a gravitational field. In simple terms, it can be said that gravitational potential energy is an energy which is related to gravitational force or to gravity.
The gravitational influence on a body at infinity is zero, therefore, potential energy is zero, which is called a reference point.
Posted by ?Ritesh Gupta? 3 years, 10 months ago
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Yogita Ingle 3 years, 10 months ago
Thermodynamics in physics is a branch that deals with heat, work and temperature, and their relation to energy, radiation and physical properties of matter.
Posted by Ronaldo Mutum 3 years, 10 months ago
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Yogita Ingle 3 years, 10 months ago
Mercury does not wet the glass because the cohesive force with the drops is stronger than the adhesive force between the drops and glass.
?Tamanna ?? 3 years, 10 months ago
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Posted by Śěřãj The Cute? 3 years, 10 months ago
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?Ritesh Gupta? 3 years, 10 months ago
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Raunak Chauhan 3 years, 10 months ago
Gaurav Seth 3 years, 10 months ago
Science is the study of the nature and behaviour of natural things and the knowledge that we obtain about them.
A science is a particular branch of science such as physics, chemistry, or biology.
A science is the study of some aspect of human behaviour,
Posted by Aditya Yadav 3 years, 11 months ago
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Aditya Yadav 3 years, 11 months ago
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Śěřãj The Cute? 3 years, 10 months ago
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Gaurav Seth 3 years, 11 months ago
For mechanical equilibrium of a rigid body, two conditions need to be satisfied:
1. Translational equilibrium: The net external force or the vector sum of all the external forces acting on the body must be zero.i.e
2.Rotational equilibrium :The net external torque or the vector sum of all the torques acting on the body is zero.
i.e
Posted by Mugunthan Mugunthan 3 years, 11 months ago
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Abirami Kamalbabu 3 years, 10 months ago
Raunak Chauhan 3 years, 11 months ago
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Black body radiation: Black body is defined as perfect emitter and absorber of light.
For example, whenever we heat an Iron ball like objects, on heating they become first Red, then Orange, then Yellow and at very high temperature they become White.
According to the electromagnetic theory, the energy is emitted or absorbed continuously. So, the radiations emitted may vary in intensity, but should have same colour. The change in color shows, that wavelength also changes .This indicates non continuous flow of energy. So, it couldn’t be explained by electromagnetic theory. This phenomenon shows, that if we keep on heating the light that it emits. It will show changes in wavelength. That means the wavelength keeps on decreasing but after White there is no further change.
Posted by First Name 3 years, 7 months ago
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Apurva Jindal 3 years, 11 months ago
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First Name 3 years, 11 months ago
Posted by Aadya Singh 3 years, 11 months ago
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Yogita Ingle 3 years, 11 months ago
In a chemical reaction chemical equilibrium is defined as the state at which there is no further change in concentration of reactants and products.
For example,
At equilibrium the rate of forward reaction is equal to the rate of backward reaction. Equilibrium mixture: The mixture of reactants and products in the equilibrium state is called an equilibrium mixtures.
Based on the extent to which the reactions proceed to reach the state of equilibrium, these may be classified in three groups:
(i) The reactions which proceed almost to completion and the concentrations of the reactants left are negligible.
(ii) The reactions in which most of the reactants remains unchanged, i.e. only small amounts of products are formed.
(iii) The reactions in which the concentrations of both the reactants and products are comparable when the system is in equilibrium.
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?Ritesh Gupta? 3 years, 10 months ago
2Thank You