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  • 1 answers

Adarsh Maurya 42 minutes ago

Physical law. A physical law, scientific law, or a law of nature is a scientific generalization based on empirical observations of physical behavior. ... The production of a summary description of nature in the form of such laws is a fundamental aim of science.
  • 1 answers

Yogita Ingle 3 hours ago

There are following four fundamental forces in nature:
(i) Gravitational forces, (ii) electromagnetic forces, (iii) strong forces or nuclear forces, (iv) weak forces. Some of the important features of these forces are discussed below:
(i) Gravitational forces : These are the forces of attraction between any two bodies in the universe separated by a definite distance.
(ii) Electromagnetic forces : They include the electrostatic and magnetic forces. The electrostatic forces are the forces between two static charges while magnetic forces are the forces between two
magnetic poles. The moving charges give rise to the magnetic forces. The combined action of these forces are called electromagnetic forces. Characteristics of electromagnetic forces :
(i) These forces are both attractive as well as repulsive.
(ii) They are central forces in nature.
(iii) They obey inverse square law.
(iv) They are conservative forces in nature.
(v) These forces are due to the exchange of particles known as photons which carry no charge and have zero rest mass.
(vi) They are 1036 times stronger as compared to
gravitational forces and 10u times stronger than the weak forces.


(iii) Strong forces : The particles inside the nucleus are charged particles (protons) and neutral particles (neutrons) which are bounded to each other by a strong interaction called nuclear force or strong force. Hence, they may be defined as the forces binding the nucleons (protons and neutrons) together in a nucleus. These are responsible for the stability of the atomic nucleus. These are of three types:
(i) n-n forces are the forces of attraction between two neutrons.
(ii) p-p forces are the forces of attraction between two protons.
(iii) n-p forces are the forces of the attraction between a proton and a neutron.
Characteristics of nuclear forces:
(i) They are basically attractive in nature and become repulsive when the distance between nucleons is less than 0.5 Fermi.
(ii) They obey inverse square law.


(iv) Weak forces : They are defined as the interactions which take place between elementary particles during radioactive decay of a radioactive substance. In p-decay the nucleus emits an electron and a particle called neutrino (which is uncharged). The interaction between the electron and the neutrino is known as weak interaction or weak forces. Characteristics of weak forces:
(i) These are the types of forces that we encounter in macroscopic world, while.
(ii) These are the types of forces that we encounter in
the microscopic world.

  • 1 answers

Shivam Dangi 5 hours ago

Acceleration of a body rotating in circular motion acting toward center of circular path
  • 1 answers

The Hammer 6 hours ago

I know projectile path🤣🤣🤣 That is Projectile motion is a form of motion where an object moves in a bilaterally symmetrical, parabolic path. The path that the object follows is called its trajectory. Projectile motion only occurs when there is one force applied at the beginning on the trajectory, after which the only interference is from gravity. 👉👉👉👉 parabolic path is curve in graph 🤭🤭Mathematically, they all follow a parabolic path, which is the path followed by a projectile
  • 3 answers

Sandeep Kumar 17 hours ago

Potential energy is always positive

Mahi... ...😃😃🤟😇 1 day, 2 hours ago

Hlo 🙂🙂.....P.E can either +ve or -ve

Rishi Seth 1 day, 4 hours ago

P. E can be -ve or +ve
  • 1 answers

Rishi Seth 1 day, 4 hours ago

No not that much. You can just learn the formula related to uniform circular motion
  • 1 answers

Shivam Dangi 1 day, 7 hours ago

Collision in which momentum remain conserved but kinetic energy do not remain conserve is called pure inelastic collision
  • 1 answers

The Hammer 1 day, 11 hours ago

The average velocity of an object is its total displacement divided by the total time taken
  • 2 answers

Raina Ahlawat 12 hours ago

Here u=12m/sec V= -12m/sec M= 0.15kg J= m(v-u) =0.15(-12-12) = -3.6 N sec

Sia 🤖 1 day, 11 hours ago

Impulse = change in linear momentum .
initial momentum of ball= mu
=0.15 {tex}\times{/tex}12 =1.8 kg.m/sec

final momentum of ball = -mu
= - 0.15 {tex}\times{/tex} 12 = -1.8 kgm/sec

now,
change in momentum of ball =final -initial
= -1.8 -1.8 = -3.6 kgm/sec
so,
change in momentum of bat = -change in momentum of ball
change in momentum of bat =3.6 kgm/s
now,
impulse imparted to ball =change in momentum of bat = 3.6 kgm/s

 

  • 3 answers

Tanashri Wagh 13 hours ago

MT-2

Shubham Chanana 1 day, 11 hours ago

MT-2

Rakesh Kumar 2 days, 3 hours ago

MT-2
  • 1 answers

Neha Yadav 2 days, 3 hours ago

The force which acts between two bodies while one body is in motion is known as friction
  • 1 answers

Shivam Dangi 1 day, 7 hours ago

For which topic
  • 1 answers

Gaurav Seth 2 days, 5 hours ago

Uniform Circular Motion

This motion refers to the circular motion if the magnitude of the velocity of the particle in circular motion remains constant. The non-uniform circular motion refers to the circular motion when the magnitude of the velocity of the object is not constant. Another special kind of circular motion is when an object rotates around itself also known by spinning motion.

  • 3 answers

Tanashri Wagh 13 hours ago

Force acting on a body displaces it in the direction of force. Also define as the product of force and displacement Scalar quantity

Hk Suman 2 days ago

Work is defined as the product of component of force in the direction of the displacement and the displacement

Tushar Joshi 2 days, 14 hours ago

Froce ×displacement(f×s)
  • 0 answers
  • 1 answers

Sudhakar Bisht 2 days, 11 hours ago

By learning books and notebooks.😌😌

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