Find out the final velocity of the skateboard
A boy of mass 46.2 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.2 m/s. The boy falls off the skateboard, and his center of mass moves forward at a speed of 10.9 m/s. Find the final velocity of the skateboard.
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Upon quenching the steel from 950 degree Celsius to 50 degree Celsius what phases will be present what will be the composition?
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Four point charges are placed at the corners of a square of side 0.20 m. The top two charges are 16 µC and the bottom two are -16µC. Find the electric field at the center of the square.
Twenty dietary iron tablets with a total mass of 22.131 g were ground and mixed thoroughly. Then 2.998 g of the powder was dissolved in concentrated HNO3 and heated to convert all the iron to Fe3+.
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A 2.50 kg mass is attached to a light cord that is wrapped around a pulley of radius 3.45 cm, which turns with negligible friction. The mass falls at a constant acceleration of 3.85 m/s2. Find the moment of inertia of the pulley.
The hydrogen gas formed in a chemical reaction is collected over water at 30 degrees celsius and a total pressure of 732 mmHg.
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