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Physics

General

Easy

Question

$straight A space projectile space of space mass space straight m space is space fired space with space straight a space velocity space straight v space from space point space Pat space an space angle space 45 degree space. space Neglecting space air space resistance comma space the space magnitude space of space the space change space in space momentum space leaving space the space point space straight P space and space arriving space at space straight Q space is$

$\sqrt{2} m v$
$2 m v$
$\frac{m v}{2}$
$\frac{m l}{\sqrt{2}}$

The correct answer is: $square root of 2 m v$

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ChemistryGeneral

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In the figure, rectangle ABOC is drawn in circle O. If OB = 3 and OC = 4, what is the area of the shaded region?

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In the figure, points A and B lie on circle O. If $AOB equals straight y degree$ , what is the value of x in term of y?

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