A) it is at rest only
B) it has a constant velocity
C) if even number of forces acting on it
D) none
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What is a balanced chemical equation? Why should chemical equations be balanced?
A reaction which has an equal number of atoms of all the elements on both sides of the chemical equation is called a balanced chemical equation. The law of conservation...
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Explain giving reasons (a) Balanced diet is necessary for maintaining healthy body.
(a) Food is necessary for the growth and development of the body. Balanced diet provides raw materials and energy in appropriate amount needed for the substances likes protein, carbohydrates, fats,...
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The earth is acted upon by gravitation of Sun, even though it does not fall into the Sun. Why?
The gravitational force is responsible for providing the necessary centripetal force
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Internal fertilization occurs Option A: in female body. Option B: outside female body. Option C: in male body. Option D: outside male body.
Correct Option: A Internal fertilization occurs inside female body
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What is Balanced Diet? How it is important for individual body?
Balanced diet in that diet which consisted of various constituents of food in accurate and appropriate in quantity and quality according to the requirement of an individual and helps in...
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Explain Balanced diet and it function in our body?
Balanced diet :- Balanced diet is that which is consisted of various constituents of food in accurate and appropriate quantity and quality according to the requirement of individual. Functions of Balanced...
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Rahul wants to build up his body very quickly without following right exercise regime and balanced diet.
(i) No, the step taken by Rahul was not right. (ii) It can lead to addiction and can affect the health adversely. (iii) Concern for health, prudency.
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A particle is acted upon by a force of constant magnitude.
c) : No work is done when a force of constant magnitude always acts at right angles to the velocity of a particle when the motion of the particle takes...
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A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the
(c) its kinetic energy is constant (d) it moves in a circular path. Explanation: Since the force is always perpendicular to the velocity, it means there is no displacement in the direction of...
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A body rotating at 20 rad/s is acted upon by a constant torque providing it a deceleration of 2 rad/s ^2.
Initial angular velocity = 20 rad/s Therefore α = 2 rad/s2 t1 = ω/α 1 = 20/2 = 10 sec Therefore 10 sec it will come to rest. Since the same torque continues to act...
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