Recent questions without an upvoted answer

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Discuss the programmes of the sports Authority of India.

asked Aug 3, 2017 in General by sforrest072 (157,439 points)

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Differentiate between Guttation and Transpiration.

asked Aug 3, 2017 in Biology by Kundan kumar (49,132 points)

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Describe the principles if integrated and comprehensive physical education.

asked Aug 3, 2017 in General by sforrest072 (157,439 points)

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Differentiate between the following:

asked Aug 3, 2017 in Biology by Kundan kumar (49,132 points)

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Explain why pure water has the maximum water potential.

asked Aug 3, 2017 in Biology by Kundan kumar (49,132 points)

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Describe the role played by protein pumps during active transport in plants.

asked Aug 3, 2017 in Biology by Kundan kumar (49,132 points)

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What are porins? What role do they play in diffusion?

asked Aug 3, 2017 in Biology by Kundan kumar (49,132 points)

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What are the factors affecting the rate of diffusion?

asked Aug 3, 2017 in Biology by Kundan kumar (49,132 points)

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A projectile is thrown with velocity of 10 m/s at an angle of 60° with horizontal. The interval between the moments when speed is (5g)^1/2 is

asked Aug 2, 2017 in Physics by HariOm Vaja (2,713 points)

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The number of roots of cosx = x is / are A) 1 B) 2 C) 3 D) 4

asked Aug 2, 2017 in Mathematics by Natsu d (35 points)

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please give detailed solution of this question

asked Aug 2, 2017 in Mathematics by noni (104 points)

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x^2 + x +1 is always Options are -A)positive B)negative C)0 D)constant Give reasons .

asked Aug 1, 2017 in Mathematics by Natsu d (35 points)

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If a,b,c belong to R^+ and 2b= a+c , then the roots of ax^2+2bx+c = 0 are A) real and equal B) real and distinct C) imaginary D) none of these

asked Aug 1, 2017 by Natsu d (35 points)

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Evalute the following integral

asked Aug 1, 2017 in JEE by Ranjit (3,065 points)

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a stone is drop from stairs from velocity 30 m/s height of the stairs is 0.25 m n breadth is 5 m then ball will strike on which stair's edge?

asked Jul 31, 2017 in Physics by Riya (403 points)

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how to know that configuration of nomenclature

asked Jul 31, 2017 in JEE by mdfaizan6 (15 points)

+2 votes

1 answer

If the velocity and acceleration have opposite signs, is it necessary that the velocity has ro decrease?

asked Jul 29, 2017 in Physics by HariOm Vaja (2,713 points)

+1 vote

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A heat engine absorbs 760 kJ heat from a source at 380K. It rejects (i) 650kJ, (ii) 560kJ, (iii) 504kJ of heat to sink at 280K.

asked Jul 28, 2017 in Chemistry by ankitdixit (1,339 points)

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question......................35

asked Jul 28, 2017 in Chemistry by ankitdixit (1,339 points)

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question 34.............

asked Jul 28, 2017 in Chemistry by ankitdixit (1,339 points)

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