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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 9

A cricket ball of mass 150 g moving with a speed of 126 km/h hits at the middle of the bat, held firmly at its position by the batsman. The ball moves straight back to the bowler after hitting the bat. Assume that the ball rebounds with same speed and they remain in contact for 0.001 s, the force that the batsman had to apply to hold the bat firmly at its place would be

A10.5 × 10-4 N
B2.1 × 103 N
C1.05 × 104 N
D2.1 × 104 N


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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
No, it's not... it is just made quite tricky! the answer is C. It asks two question simultaneously: 1. vinegar plus baking soda evolves which gas? 2. What is formed when CO2 reacts with lime water? Hope u know their answers!! ;)

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
A

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
Answer is A because after 100 degree, the water begins to evaporate.. So no more rise in temperature.

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 6

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