Q80 of 100 Page 211

Which of the following scientists gave the idea of the existence of gravitational force?

Newton propound the universal laws of gravitational

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Which of the following is not an effect of force?

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Which of the following is not a non-contact force?

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Some mustard oil is kept in a beaker. It will exert pressure:

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A pressure of 10 kPa acts on an area of 0.3 m2. The force acting on the area will be :