A sample of an ideal gas in a cylinder is compressed adiabatically to 13rd of its volume. Will the final pressure be more or less than 3 times the initial pressure?

Change in pressure will be more than 3 times the initial pressure.

A sample of an ideal gas in a cylinder is compressed adiabaticall…

When a ball is thrown upwards, its momentum decreases and then increases. Does this process violate the law of conservation of momentum?

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If the line of action of the force is passing through the same point relative to which its moment is to be determined then what will be the value of the moment of force?

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Explain why When we try to close a water tap with our fingers, fast jets of water gush through the openings between our fingers.

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Tea gets cooled when sugar is added to it. Why?

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The work done in adiabatic change depends only on what?

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For the travelling harmonic wave
$\text{y}(\text{x, t})=2.0\cos2\pi(10\text{t}-0.0080\text{x}+0.35)$
where x and y are in cm and t in s. Calculate the phase difference between oscillatory motion of two points separated by a distance of
$\frac{3\lambda}{4},$

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Bridges are declared unsafe after long use. Why?

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Two persons of equal mass are standing at some distance from each other on a flat field of ice with ice skates tied to their feet. Arope is tied around the waist of one person. If the second person pulls the rope towards himself, what will be the effect of the speed of both the people?

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Tell the position of the center of mass of rectangular rod, disc and sphere etc.

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Which quantity does not change during change of state?

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