The weight of two metallic spheres, each of 200 g and radius 4 cm and
10 cm respectively are measured in water and vacuum. How will the ratio
of their weights change in water and in vacuum ? Explain.
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The weight of two metallic spheres, each of 200 g and radius 4 cm and 10 cm respectively are measured in water and vacuum. How will the ratio of their weights change in water and in vacuum ? Explain. A cricket ball thrown vertically upward with a velocity 49 ms-l is caught back at the point from where it was thrown upward by a player. Calculate the total time taken by the player in catching back the ball after throwing it upward.
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