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1. A 8 kg block is at rest on a horizontal floor. If you push horizontally on the 8 kg block with a force of 20 N, it just starts to move. (a) What is the coefficient of static friction? (b) A 10.0 kg block is stacked on top ...

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If f(x1) + f(x2) = f{(x1+x2)/(1+x1x2)} , find f(x). ...

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A rocket with a liftoff mass 20,000 kg is blasted upwards with a an initial acceleration of 5 m/s^2 .Calculate: the initial force of the blast : 1) 1 x 10^5 N 2) 3 x 10^5 N 3) 2 x 10^5 N 4) 4 x 10^5 N ...

Four metallic plates are arranged as shown in the figure. If the distance between each plate is d then capacitance of the given system between points A and B is (Given d << A) *Image* a) (epsilon_0 A)/d b) 2 (epsilon_0 ...
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limx→0 sin(πcos2x)/x2 ...

mathop {lim }limits_{x o 0} frac{{sin (pi {{cos }^2}x)}}{{{x^2}}} = a)  pi b) pi c) frac{pi }{2} d) 1 ...

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Why does a porter, carrying a heavy load on his back, bend forward? ...

TWO CONDUCTING plates each of area A are separated by distance d and they are parallel to each other. A conducting medium of varying conductivity fills space between them. the conductivity varies linearly σ to 2σ as we move ...

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Let f(x) be a real valued function not identically zero satisfies the equation, f(x+yn)=f(x)+(f(y))n for all real x & y and f'(0)≥0 where n(>1) is an odd natural number. Find f(10) ...

Find 1/2.4 + 1.3/2.4.6 + 1.3.5/2.4.6.8 +....till n terms ...

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find the pint on the curve y^2=4x which is nearest to the point (2, 8) ...

In the Bohr model of a hydrogen atom, the centripetal force is furnished by the coulomb attraction between the proton and the electron. If {{a}_{0}} is the radius of the ground state orbit, m is the mass, e is the charge on t ...

\int_{0}^{1}\frac{\log_{e}(1+x)}{1+x^2} ...

The value of cos {{1}^{o}}cos {{2}^{o}}cos {{3}^{o}}.....cos {{179}^{o}} is a) frac{1}{sqrt{2}} b) 0 c) 1 d) None of these ...

ABC is right angled triangle, right angled at B. Length of AC, and angle ∠BAC are given and We want to calculate the length of BC. What can we use? a) Sine b) Cos c) Tan d) Cot ...

How does black body radiation prove the particle nature of light? Why can't it be explained using the wave nature? ...

9)What type of change occurs when we boil rice? Physical Chemical Both None Your Answer b Correct Answer a Your Score1 How is this possible? Please check the real answer. ...

Let R be a relation on N defined by x + 2y = 8 . The domain of R is a) {2, 4, 8} b) {2, 4, 6, 8} c) {2, 4, 6} d) {1, 2, 3, 4} ...

An element having b atomic no and a mass no. under goes a α emission then a β emission simultaneously .. then the new values of atomic and mass no. is a) a2, b4 b) a4,b1 c) a4,b2 d) none ...