1 a certain object weighs 300 n at the earths surface, Ask an Expert

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1. A certain object weighs 300 N at the Earth's surface. Determine the mass of the object (in kilograms) and its weight (in newtons) when located on a planet with an acceleration of gravity equal to 4.0ft/s².

2. The density of a certain type of jet fuel is 775 kg/m³. Determine its specific gravity and specific weight.

3. A hydrometer is used to measure the specific gravity of liquids. (See Video V2.8.) For a certain liquid, a hydrometer reading indicates a specific gravity of 1.15. What is the liquid's density and specific weight? Express your answer in SI units.

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