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An electron is moving round the nucleus of a hydrogen atom in a circular orbit of radius r. The coulomb force between the two is (Where ) ...
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3)Calculate the current in a wire if 900 C of charge passes through it in 10 minutes. 2A 5A 10A None of these Your Answer d Correct Answer b A=C/t HERE C=900C AND t= 10*60s THEREFORE A=900/600A =1.5A THEN HOW MY ANSWER IS WRO ...
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If 1021 molecules are removed from 200 mg of CO2 then the number of moles of CO2 left is 2.88 x 10-3 1.66 x 10-3 4.54 x 10-3 1.66 x 10-2 Your Answer Not Attempted Correct Answer a please show me the calculation. ...
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If 1021 molecules are removed from 200 mg of CO2 then the number of moles of CO2 left is 2.88 x 10-3 1.66 x 10-3 4.54 x 10-3 1.66 x 10-2 Your Answer Not Attempted Correct Answer a please show me the calculation. ...
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Given that a, b, and c are all positive, and that ab = 21, ac = 18, and bc = 42, ï¬nd a + b + c. ...
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All of you must have solved or at least tried to solve river-crossing or gorge-crossing riddles, with some conditions, but believe me, this one is really typical... There was a group of two teachers (one male and one female) ...
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All of you must have solved or at least tried to solve river-crossing or gorge-crossing riddles, with some conditions, but believe me, this one is really typical... There was a group of two teachers (one male and one female) ...
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If 2^x=3^y=6^-z,then what is the value of 1/x+1/y+1/z? How should I do this ? ...
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Which of the following is not the characteristic of the image formed by the pinhole camera? real Virtual erect B & D Your Answer c Correct Answer b THE CHARACTERISTICS OF A PINHOLE CAMERA STATES THAT THE IMAGE IS REAL,INVERTE ...
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If ultrasonic, infrasonic and audio waves travel through a medium with speed v1 v2 and v3 respectively, then v1 = v2 = v3 v1 > v3 > v2 v1 < v3 < v2 v3 ≤ v1 and v1= v3 Your Answer b Correct Answer a 3 WAVES HAVE ...
