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Q1. A weather vane at first at rest has a moment of inertia of 0.111 kg • m2 about its axis of rotation. A 53.0 g piece of clay is thrown at the vane and sticks to it at a point 19.5 cm from the axis. The initial velocity of the clay is 20.0 m/s, directed vertical to the vane. Find out an angular velocity of the weather vane just after it is struck.
Q2. When solids are dissolved in a liquid solid take up the spaces between the liquid molecules (the macroscopic volume of the liquid basically stays the same). If I have 2 containers and I dissolve 50 grams of NaCl in one and 50 grams of LiCl in the other, that container would provide the aluminium block with a greater buoyancy force (assume both completely dissolve)?
The distance between the first and fifth minimum on a screen 60 cm behind the slits is 6.0 mm. What is the wavelength of the light used in this experiment.
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The length of the mercury column is 4.0cm in pure melting ice and 28.0 cm in the steam. Compute the temperature for a length of 22.0.
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Liquid nitrogen has a boiling point of 77.3 K and a latent heat of vaporization of 2.01 105 J/kg. A 60.0-W electric heating element is immersed in an insulated vessel containing 46.5 L of liquid nitrogen at its boiling point. How various kilograms of..
What is torque exerted by the fish about an axis
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