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CBSE Class 11-science Answered

a = 3i-4j+7k and b=6i -3j=2k find |a+b|
Asked by Abhas Bhargava | 09 Sep, 2013, 12:35: AM
answered-by-expert Expert Answer
Thus,
Thus, the magnitude of a + b is
Answered by Romal Bhansali | 09 Sep, 2013, 10:54: AM

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CBSE 11-science - Physics
7. State the relation between maximum range and maximum height of the projectile if the angle of projection is 45 deg
Asked by roshnibudhrani88 | 23 Mar, 2024, 05:52: PM
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CBSE 11-science - Physics
two forces whose magnitude are in the 3:5 give a resultant f Jatio 3:5 give 20 N. If fac 20. It fue angle of thread indination of each face find Magnitude
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Asked by vinitdubey7735 | 14 Mar, 2024, 11:21: AM
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CBSE 11-science - Physics
A platform is moving upwards with an acceleration of 5m/s².At the moment when it's velocity is 3m/s, a ball is thrown from it with a speed of 30m/s w. r. t platform at an angle of 30 with horizontal w. r. t plat form. What is the time taken by the ball to return to the platform
Asked by shailajakandikatla19 | 18 Jan, 2024, 06:40: PM
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CBSE 11-science - Physics
please provide complete solution
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Asked by dhanshreekansyakar | 09 Jan, 2024, 11:57: AM
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CBSE 11-science - Physics
A×B where A= 2i-3j-k and B =i+4j-2k
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Asked by banhisikhapanda49 | 07 Nov, 2023, 10:42: PM
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CBSE 11-science - Physics
in a vertical circle of radius r at what point in its path a particle may have tension equal to zero
Asked by momintaufik26 | 13 Oct, 2023, 08:26: PM
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CBSE 11-science - Physics
clear my doubt
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Asked by anshujaiswalname | 10 Sep, 2023, 01:29: PM
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CBSE 11-science - Physics
clear my doubt
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Asked by subhashreeojha235 | 20 Jul, 2023, 11:22: AM
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CBSE 11-science - Physics
1.State paralogram law of vector addition and derive magnitude and the direction of a resultant vector  
Asked by preethiprithivi05 | 21 Feb, 2023, 09:28: PM
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CBSE 11-science - Physics
A particle is projected from a point P with a velocity v at an angle θ with horizontal. At a certain point Q it moves at right angles to its initial direction. Then (a) velocity of particle at Q is vsintheta (b) velocity of particle at Q is Vtantheta (c) time taken from P and Q is v/g sin theta (d) time taken from P and Q is v/gsectheta
Asked by hy9022075 | 11 Jan, 2023, 05:06: PM
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