is it possible that the clock works differently in winter and in summer ?

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What is the Unit for charge?

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A man asks his friend to meet him at the airport at 3.00pm,to drive him to an appointment.he catches an earlier plane,and arrives at the airport at 2.00pm.he decides to start walking and is picked up en route by his friend.he arrives twenty minutes early for his appointment.how long did he walk?

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we know when two atom combine,the electrions are in valance band,but in case of semiconductor doner or acceptor level are above of v.. whyb

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Explain what is free fall acceleration?

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How much does sea salt weigh per cubic foot?

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a truck A moving with a velocity of 30m/s collides with a stationary trolley B of mass 0.5tonnes after collision the two bodies were automatically connected.find their common velocities after collision if the mass of truck is 1.2tonne.

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Why is battery used in a motor car ?

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How does a sailor find his longitude ?

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What is Insulators ?

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What is sonar ( sound navigation and ranging )?

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Similar charges repel while dissimilar ones attract each other. How does two electrons attract each other during the formation of bond or why don't the protons in the nucleus repel?

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