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CBSE Class 11-science Answered

if a soda bottle is falling freely, will the bubbles in it rise? why?
Asked by soumya mittal | 01 Sep, 2011, 09:00: AM
answered-by-expert Expert Answer
The water in the freely falling bottle is in the state of weightlessness. So the pressure in the water does not increase with depth. Due to this, no upthrust acts on th bubbles. Hence, bubbles will not rise in water.
Answered by | 01 Sep, 2011, 09:38: AM

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CBSE 11-science - Physics
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CBSE 11-science - Physics
a block of mass m is pulled along a horizontal smooth surface by a rope of mass m force p applied at one end of rope force which the rope exert on block is
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CBSE 11-science - Physics
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CBSE 11-science - Physics
Two blocks of mass m=5kg and M=10 kg are connected by a string passing over a pulley B as shown. Another string connects the centre of the pulley B to the floor and passes over another pulley A as shown. An upward force F is applied at the centre of pulley A. Both the pulleys are massless. Find the acceleration of both the blocks if 1) F=100N.  2)F=500N
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Asked by sakethrockzz007 | 14 Aug, 2023, 04:30: PM
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CBSE 11-science - Physics
A block of mass m is placed on a wedge as shown. Find difference between maximum and minimum (a(max) – a(min) ) horizontal rightward acceleration of wedge for which block remains at rest with respect to wedge. (A) 10g/9 (B) g/9 (C) g (D) None of these
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Asked by sahuaryanbro1.0 | 01 Jan, 2023, 10:17: PM
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CBSE 11-science - Physics
A force 50 N acts on a body for 10 sec.what will be the change in momentum
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CBSE 11-science - Physics
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CBSE 11-science - Physics
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CBSE 11-science - Physics
In the arrangement shown in the figure, a heavy pulley of mass M is suspended from a spring of stiffness constant K and the mass m is suspended from a string tightly wound on the pulley. If the mass m is given a small downward displacement and released, find the time period of small oscillations (Take pulley as Disc) and string does not slips on the pulley.
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Asked by alkrishna4652 | 24 Feb, 2022, 01:46: PM
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CBSE 11-science - Physics
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