What is Centre of Mass?

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ANAND_YADAV Asked Aug 1, 2023

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Distance of the centre of mass of a solid uniform cone from its vertex is z_0

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Centre of mass of n-particles system

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ANAND_YADAV Asked Aug 1, 2023

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Centre of mass of a Rigid Body

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A hoop of radius r and mass m rotating with an angular velocity ω_0 is placed on a rough horizontal surface

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A bob of mass m attached to an inextensible string of length l is suspended from a veritable support

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What is the acceleration produced by a force of 12 newtons exerted on an object of mass 3 kg?

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If the eye is kept very close to a converging lens (focal length = 10 cm) and at the optical centre of the lens and an object is kept at distance 'd' then the minimum distance 'd' of the object from the lens so that its image can be seen clearly by the defect free eye is :

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What is the momentum of an object of mass m, moving with a velocity v?

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What is the mass of 4 moles of aluminum atoms?

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What is the mass of 5 mole of ammonia?

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If 6.3 g of NaHCO3 are added to 15.0 g of CH3COOH solution, the residue is found to weight 18.0 g. What is the mass of CO2 released in this reaction?

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Chandan Asked Oct 6, 2023

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When 10 gm of a non-volatile solute is dissolved in 100 gm of benzene its boiling point raised by 1º. What is the molecular mass of solute?

Chandan Asked Oct 6, 2023

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1 Answer

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Cu-63 isotope is 69.09% and Cu-65, 30.91% in a copper atom. If the mass of ${ }^{63} Cu$ isotope is 62.9298 amu, what must be the mass of ${ }^{63} Cu$ isotope given that atomic mass of copper is 63.546 amu?

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1 Answer

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Ankit Asked Oct 11, 2023

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The equation of circle with centre (1,2) and tangent x+y-5=0 is

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The area of the circle whose centre is at (1,2) and which passes through the point (4,6) is

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The equation of a circle with centre (4,1) and having 3x+4y-1=0 as tangent, is

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1 Answer

1 Vote

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Chemosensitive area of respiratory centre in medulla is affected by

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Justify the statement that the mass of a body is a measure of its inertia.

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A body of mass m kg is rotating in a vertical circle at the end of a string of length r metre.

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A body of mass M is resting on a rough horizontal plane surface, the coefficient of friction being equal to $\mu .$ At $t=0$

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1 Answer

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ALOK_RAJ Asked Jul 30, 2023

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How much force is needed to produce an acceleration of 16 cm/s^2 in a body of mass 250 g?

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ANAND_YADAV Asked Jul 29, 2023

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The mass of a ball is $1.76 kg$. The mass of 25 such balls is

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A charged particle of mass 0.003g is held stationary in a space by placing it in a downward direction of electric field of $6×10^4NC^{-1}$. Then, the magnitude of charge is

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Mihir verma Asked Apr 3, 2022

247 views

Consider a uniform square plate of side a and mass m. The momentum of inertia of this plate about an Axis perpendicular to its plane and passing through one of its corners is

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1 Answer

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Chandan Asked Aug 2, 2023

53 views

What is Molecular Mass?

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1 Answer

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Barjes Yadav Asked Feb 22

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A hockey ball of mass 200 g travelling at 10 m s-¹ is struck by a hockey stick so as to return it along its original path with a velocity at 5 m s-¹. Calculate the change of momentum occurred in the motion of the hockey ball by the force applied by the hockey stick.

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From a rifle of mass 4 kg, a bullet of mass 50 g is fired with an initial velocity of 35 m s¹. Calculate the velocity of the rifle.

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Which one is the best example of law of conservation of mass?

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Caffeine has a molecular weight of 194 . It contains about 30% by mass of nitrogen. The number of atoms of nitrogen in one molecule of it is :

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An organic compound on analysis was found to contain 0.032% of Sulphur by mass. The molecular mass of the compound, if its one molecule contains two Sulphur atoms, is :

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A sample of oxygen containing 4/Ν_Α mol of oxygen is represented on a Y-map where its volume at NTP, mass of the sample and number of particles are shown. Study the map & choose the correct option.

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1.5 x 10^22 atoms of an element weight about 0.9 g. The atomic mass of the element (in amu) is —

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75 mL of H2SO4 solution (specific gravity = 1.18), containing 49% H2SO4 by mass, is diluted to 590 mL. Calculate molarity of the diluted solution.

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