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New answer posted

5 months ago

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P
Pallavi Pathak

Contributor-Level 10

Conservative forces (like gravity or spring force) conserve mechanical energy and do not depend on the path taken. The work done by the conservative forces is recoverable.
Non-conservative forces (like friction or air resistance) dissipate energy as heat or sound. It depends on the path. When non-conservative forces act, mechanical energy is not conserved.

New answer posted

5 months ago

0 Follower 9 Views

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Pallavi Pathak

Contributor-Level 10

Energy is measured in joules (J). It is the capacity to do work while power is the rate of using energy or doing work. Power is measured in watts (W). One watt equals one joule per second. Power talks about how fast the work is done, and energy is about how much work is possible. 

New answer posted

5 months ago

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P
Pallavi Pathak

Contributor-Level 10

When without slipping a body rotates and translates simultaneously is called rolling motion, such as a wheel on a road. It is the combination of rotatory and translatory motion. The point of contact has zero velocity relative to the surface in pure rolling. It is a condition in which there is no slipping or sliding during rolling.

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5 months ago

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P
Pallavi Pathak

Contributor-Level 10

According to the Class 11 Physics Chapter 6 System of Particles and Rotational Motion, for a rigid body to be in complete equilibrium, two conditions should be met:

  • Net external torque = 0 (rotational equilibrium)
  • Net external force = 0 (translational equilibrium)

The condition for equilibrium in rotational motion ensures that the body is not rotating or accelerating linearly. It is important in engineering and static structures to maintain stability like buildings or bridges.

New answer posted

5 months ago

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P
Pallavi Pathak

Contributor-Level 10

The moment of inertia of a body about any axis to its moment of inertia about a parallel axis through the center of mass is the parallel axis theorem.
It states:
I = Ic + Mh2
Ic is the moment of inertia about the center
I is the moment of inertia of the body
h2 is the square of the distance between the two axes
M is the mass of the body

New answer posted

5 months ago

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Shiksha Ask & Answer
Abhinav Kumawat

Beginner-Level 5

To get a BDS seat at J.N. Kapoor, D.A.V Centenary Dental College, Yamunanagar, candidates should aim for a NEET score that corresponds to a closing rank within the range of 594343 in the first round to 743716 in the last round for the 2024-2025 academic year.

The closing rank in Round 1 was 288206 and in Round 3 it was 383798. For government dental colleges, a minimum score of 450 in NEET 2024 is generally recommended. 

New answer posted

5 months ago

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Shiksha Ask & Answer
Abhinav Kumawat

Beginner-Level 5

Hi

BDS NEET Score Requirements

- General Category: For other government colleges, it's 500-550 marks, and for private colleges, it's 450-500 marks.

- OBC Category:For other government colleges, it's 500-550 marks, and for private colleges, it's 450-500 marks.

- SC/ST Category:For other government colleges, it's 400-500 marks, and for private colleges, it's 400-450 marks.

 

BPT NEET Score Requirements

The requirement of NEET scores for BPT admission varies across institutions and states. Some colleges accept NEET scores, while others don't. 

New answer posted

5 months ago

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P
Pallavi Pathak

Contributor-Level 10

The scalar quantities are physical quantities with no direction and only magnitude (size). Examples of scalar quantities are mass, temperature, speed and distance. On the other hand, vector quantities have both magnitude and direction. The examples are force, acceleration, displacement and velocity.
The scalar quantities can be described by a single number and vectors require both a directional component and a numerical value. In understanding motion, vectors are important because they indicate both the movement's amount and direction. In systems which are more complex with multiple forces or directions, vectors help accurately to repre

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5 months ago

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P
Pallavi Pathak

Contributor-Level 10

Distance and displacement both refer to how far an object has moved, but the meanings are different. The distance is a scalar quantity and it is the total length covered by an object, irrespective of the direction. It is always positive, and talks about how much ground the object has covered. On the other hand, displacement is the vector quantity and refers to the change in position of an object from the initial to the final point. It considers both the magnitude and direction. It can be negative, positive or zero depending on the motion's direction. If one starts from an initial point and covers a distance of 5 meters and then comes b

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