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CBSE Class 9 Answered

CAN YOU TELL THE IMPORTANT POINTS TO REMENBER IN NEWTONS THRID LAW OF MOTION
Asked by HIMAJA | 09 Aug, 2012, 09:37: PM
Expert Answer
The only point to remember in case of third law of motion is the point of application of action. as the reaction will be applied at the same point exactly in the opposite direction so as to cancel it.
Answered by | 09 Aug, 2012, 10:15: PM
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CBSE 9 - Physics
solve this problem
Asked by kunaljat51 | 24 Jul, 2022, 10:25: PM
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CBSE 9 - Physics
a bus accelerates at 2m per second for first 10 second after the start and retards at 1m per second for next 10 second find the total distance covered by the bus
Asked by komalpoonia636 | 16 Jun, 2022, 02:07: PM
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CBSE 9 - Physics
Questions 23-25 are based on the information given below. Read the information and answer the questions that follow:A bob of mass ‘m’ is suspended by a string, g be the acceleration due to gravity the bob.When the bob is stationary, the tension ‘T’ in the string is T=mg.When the bob is pulled up with an acceleration ‘a’ the tension in the string is given by T= m (g + a)When the bob is allowed to move down with an acceleration ‘a’, the tension T in the string is given byT= m (g –a)  
Asked by avishisanghai | 20 Feb, 2022, 05:19: PM
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CBSE 9 - Physics
The weight of a boy on the surface of earth is 294N. Find its mass.
Asked by charvi | 26 Nov, 2021, 06:27: PM
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CBSE 9 - Physics
A block of wood is kept on a horizontal table the mass of the wooden block is 6 kg and its dimensions are 10 into 10 into 10 what is the pressure exerted by the wooden block on the table
Asked by aanchishraddha | 16 Nov, 2021, 09:27: PM
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CBSE 9 - Physics
A boy of mass 45 kg running 6 m/s jumps onto a 30 kg trolley moving in the same direction at 1.5 m/s. Their common velocity will be: A. 4.0 m/s B. 4.2 m/s C. 6.5 m/s D. 8.3 m/  
Asked by nishitatrambadia | 21 Oct, 2021, 09:38: AM
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CBSE 9 - Physics
Unbalanced force can also change the shape,size of the body as Balanced force do
Asked by anuragyvidya | 28 Sep, 2021, 12:47: PM
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CBSE 9 - Physics
what is linear momentum ?
Asked by frusbJusyktsnis | 17 Sep, 2021, 12:03: AM
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CBSE 9 - Physics
Define 2nd law of motion
Asked by mina.sengupta.2014 | 02 Sep, 2021, 12:49: PM
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CBSE 9 - Physics
A nail is driven into a wooden board by using a hammer. the impact of hammer on the head of the nail reduces the thrust of 25N. If the area of head is 0.5mm square and the tip is 0.1mm square.Find the pressure of head and tip
Asked by sreesaie2008 | 01 Aug, 2021, 06:12: AM
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