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A 1kg block is being pushed against a wall by a force F = 75 N as shown in the Figure. The coefficient of friction is 0.25. The magnitude of acceleration of the block is *Image* ...

int {frac{{dx}}{{4{{sin }^2}x + 5{{cos }^2}x}}} ...

the compound H3N:BF3 is isoelectronic with A)B2H6 B)C2H6 C)C5H12 D)C3H6 . PLEASE EXPLAIN. ...

The least positive integer n which will reduce {left( {frac{{i - 1}}{{i + 1}}} ight)^n} to a real number, is ...

For a positively charged particle moving in a x-y plane initially along the x-axis, there is a sudden change in its path due to the presence of electric and/or magnetic fields beyond P. The curved path is shown in the x-y pla ...

Which of the following statement(s) is (are) correct? ...

Which of the following is most covalent – ...

Plane microwaves from a transmitter are directed normally towards a plane reflector.A detector moves along the normal to the reflector.Between positions of 14 successive maxima , the detector travels a distance 0.13m.Find the ...

Two wires of different densities are soldered together end to end then stretched under tension T.The wave speed in the first wire is twice that in the second wire. (a)If the amplitude of incident wave is A,what are the amplit ...

Suppose there is a pulley with a mass m hanging in one one side of the string and the other side is attached to a vibrator by keeping the string in a horizontal position.The linear mass density of the string is 0.002 kg/m.The ...

If initial velocity of the block is zero, its velocity at 4 seconds will be ...

An electron moving with a speed u along the positive x-axis at y=0 enters a region of uniform magnetic field vec{B}=-{{B}_{o}}hat{k} which exists to the right of y-axis. The electron exits from the region after some time with ...

If x + frac{1}{x} = sqrt 3 , then x = ...

Hey friends , I am in 11th class and I am in need of a good physics book for practicing questions , tell me is New Pattern IIT JEE Physics D C Pandey good for a 11th class student , can a 11th class student use this book for ...

A block is given certain upward velocity along the incline of elevation α.The time of ascent to upper point was found to be half the time of descent to initial point.The co-efficient of friction between block and inclin ...

Find the net contact force on the 1 kg block.(Take sqrt{5}approx 2 for this question) *Image* ...

{i^2} + {i^4} + {i^6} + ..... upto (2n+1) terms = ...

Solve the equation cos 4θ+sin5θ=2. (cos4θ=1....and sin5θ=1...using this i got θ= nπ/2 and θ= nπ/5 +(-1)n π/10 ....how should i proceed further??) ...

∫f(x)/f'(x) dx ...

A current carrying loop is placed in a uniform magnetic field in four different orientations, I, II, III and IV, arrange them in the decreasing order of potential energy *Image* ...

25 mL of a 0.107 M H3PO4 was titrated with a 0.115 M solution of a NaOH solution to the end point identified by the colour change of the indicator,bromocrescol green.This required 23.1mL.The titration was repeated using pheno ...

The sum of 1+3+5+7+..... upto n terms is ...

If {left( {frac{{1 + i}}{{1 - i}}} ight)^m} = 1, then the least integral value of m is ...

The values of x and y satisfying the equation frac{{(1 + i),x - 2i}}{{3 + i}} + frac{{(2 - 3i),y + i}}{{3 - i}} = i, are ...

Find the next term: 521, 612, 343, 215, ____ ...

Find the next term: 0, 7, 26, 63, 124, _____ ...

if any nucleophille is given how can we say that it is weak or strong nucleophille? ...

what is the IUPAC name of Na3[Co(NO2)6 ??? ...

Two identical circular loops of metal wire are lying on a table. Loop A carries a current which increases with time. In response, the loop B ...

While going for station A to station B a train travelled at a speed 100 km/hr and 150 km/hr during return. The average speed of train ...