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Top Conceptual Questions for Rotational Mechanics

1) If the total external force acting on a rigid body is zero, then
(a) only linear momentum remains constant
(b) only angular momentum remains constant
(c) both linear momentum and angular momentum remains constant
(d) neither linear momentum nor angular momentum remain constant

2) A ball of mass M is tied to a string of length L is whirled round in a horizontal plane in a circle of radius R. The speed of the stone is increased beyond the maximum permissible value and the string breaks suddenly; then
(a) the stone will jerk radially outwards

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Integration of irrational functions

Introduction The integration of irrational functions, which involves incorporating radicals (or root functions) into the integrand, is a challenging yet intriguing area of calculus. These functions often contain variables under a square root or higher-order roots, such as $\sqrt{x}$, $\sqrt[3]{x^2 + 1}$, and similar forms. This article delves into the methods and applications of integrating

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How to cope the exam stress

11 Smart ways to relieve stress during examination time

Students deal with lots of stress during the examination days. We can reduce the stress and stay calm and get success by following these simple steps

1)Take practice tests. The single best way to prepare is to practice. Taking sample exams under similar conditions as the real one will familiarize you and increase your confidence Level. This should be done few days before the examination days. The day before examination should be kept for revising the notes only

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Use of concept of electric potential

We already know about electric field and electric potential. We also know that electrostatic field is completely characterized by vector function E(r). The electric field depicts the force exerted on other electrically charged objects by the electrically charged particle the field is surrounding. Now a question arises why do we need introduction of electric potential when we already have electric field for the description of electric force between charges.

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