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if |A X B| = A . B then angle between A&B is ? ...

Equation of the line through the point ( 1/2 ,2) and tangent to the parabola y = - x2/2 + 2 and secant to the curve y = 4 - x2 is (A) 2x + 2y - 5 = 0 (B) 2x + 2y - 3 = 0 (C) y-2 = 0 (D) None of these ...

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can anyone please explain menstrual cycle to me? thank you! ...

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How can we convert Anniline to phenyl isocyanide? ...

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3 burgers,2pizzas and 5 cokes cost 565. now 4 burgers,4 pizzas and 2 cokes cost 310 .then what is the cost of 5 burgers , 4 pizzas and 6 cokes? please show the working along with the answer! ...

What is Zone refining? ...

Why are pentahalides of Gr 15 elements more covalent than trihalides? ...

Two curves C1 : y = x2 - 3 and C2 : y = kx2, k ε R intersect each other at two different points. The tangent drawn to C2 at one of the points of intersection A(a,y1), (a>0) meets C1 again at B (1, y2) (y1 ≠y2). The valu ...

100 co-planar forces each equal to 10N act on a body. Each force makes an angle π/5 with the preceding force. What is the resultant ? ...

What is the the angle between P and the resultant of (P + Q)and (P-Q) ? ...

Why is the Central zone of a candle flame luminous? ...

Advanced 2 Q . 57 part (p) lim(x→0) √(2-2cosx)/2x = ? ...

Are light waves transverse waves?? ...

2 balls of same mass are thrown horizontally from the top of a tower in the opposite direction with velocities 3m/s and 4m/s. The distance between the balls when their velocities are mutually perpendicular will be nearest to ...

Prove that the net internal torque on a body is zero if and only if the action-reaction forces between all pairs of its particles act along the line joining the two particles. ...

P&Q are 2 forces such that their resultant is R . IF Q is doubled R IS also doubled if Q is reversed then again R is doubled then p.t. P:Q:R:: 2 : 3 : 2 ...

Calorific value is expressed in kJ/g right? ...

which of the following sets of concurrent forces maybe in equilibrium a)3N,5N,9N b)3N,5N,1N c)3N,5N,15N d)3N,5N,6N ...

Is there a specefic ratio or amount of CO and H2 individually in 1 unit mass of Water gas?? Or is it a mixture? ...

Calculate the potential difference between points A and B in the circuit shown. Under what condition is it equal to zero. *Image* ...

How can I change add a profile image in my profile?? ...

Given:- k = lim (x→ ∞) [ Σ(k=1 to k=1000){ x + k} m ] / [ x m + 10 1000 ] where m > 101. ...

A fireman wants to slide down a rope. The breaking load for the rope is 3/4 of the weight of the fireman. With what minimum acceleration should he slide down a)g b)3g/4 c) g/4 d)g/8 ...

Please post the method and explanations as well :) ...

When light enters water its amplitude changes. Why? ...

A cricketer catches a ball of mass 150 gm in 0.5 sec moving with speed 20 m/sec then he experienced force of a. 300 N b. 30 N c. 3 N d 0.3N ...

Prove that sin (nA) = cos n A (n C1 tan A - n C3 tan 3 A + n C5 tan 5 A -............) ...