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4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh In which direction does the buoyant force on an object due to a liquid act? 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh The buoyant force depends on the nature of object immersed in the liquid. (b) Archimedes’ principle can also be applied to gases. 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh State the units in which pressure is measured. 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh Name the quantity whose one of the units is pascal (Pa). 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh What is the value of relative density of water? 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh What is the density of water in SI units? 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh Write the common unit of density. 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh The values of g at six distances A, B, C, D, E and F from the surface of the earth are found to be 3.08 m/s^2, 9.2.3 m/s^2, 0.57 m/s^2 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh What is the actual shape of the orbit of a planet around the sun ? What assumption was made by Newton regarding the shape of an orbit of a planet around the sun for deriving his inverse square rule from Kepler’s third law of planetary motion ? 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh A stone and the earth attract each other with an equal and opposite force. Why then we see only the stone falling towards the earth but not the earth rising towards the stone? 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh A coin and a piece of paper are dropped simultaneously from the same height. Which of the two will touch the ground first? 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh Suppose a planet exists whose mass and radius both are half those of the earth. Calculate the acceleration due to gravity on the surface of this planet. 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh Universal law of gravitation states that every object exerts a gravitational force of attraction on every other object. If this is true, why don’t we notice such forces? 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh If the distance between two masses is increased by a factor of 5, by what factor would the mass of one of them have to be altered to maintain the same gravitational force? 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh The mass of a planet is 6 x 10^24 kg and its diameter is 12.8 x 10^3. If the value of gravitational constant be 6.7 x 10^-11 Nm^2/kg^2 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh State and explain Kepler’s laws of planetary motion. Draw diagrams to illustrate these laws. 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh Is the acceleration due to gravity of earth ‘g’ a constant? Discuss. (b) Calculate the acceleration due to gravity on the surface of a satellite having a mass of 7.4 x 10^22 kg 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh State the universal law of gravitation. Name the scientist who gave this law. (b) Define gravitational constant. What are the units of gravitational constant? 4 years ago BidishaKashayap1333 class 9 gravitation lakhmir singh Page 4 / 5 Prev 1 2 3 4 5 Next Share: Super Globals Requests: Server: Options and Features route: community use_home_url: url: https://eanshub.com/community/ pageid:187 default_groupid: 3 2022 How Can We Help? Δ Home About Us Contact Us Privacy Policy Term of Use Copyright © 2020 Eanshub All Rights Reserved