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Question Number 23508 Answers: 1 Comments: 1

Question Number 23518 Answers: 0 Comments: 5

A ball of mass 1 kg moving with velocity 3 m/s collides with spring of natural length 2 m and force constant 144 N/m. What will be length of compressed spring?

$A ball of mass 1 kg moving with velocity$ $3 m / s collides with spring of natural$ $length 2 m and force constant 144 N / m .$ $What will be length of compressed$ $spring ?$

Question Number 23492 Answers: 0 Comments: 5

Question Number 23489 Answers: 1 Comments: 2

A rectangular wire frame ABCD is in vertical plane is moving with a constant acceleration a into the plane. Direction of gravity is shown in figure. A collar can move on wire AC of length l. Coefficient of friction between wire and collar is μ. Find (i) The minimum acceleration a so that collar does not slip on wire. (ii) The time taken by collar to reach C if acceleration is half the value calculated in part (i)

$A rectangular wire frame A B C D is in$ $vertical plane is moving with a constant$ $acceleration a into the plane . Direction$ $of gravity is shown in figure . A collar$ $can move on wire A C of length l .$ $Coefficient of friction between wire$ $and collar is μ . Find$ $(i) The minimum acceleration a so that$ $collar does not slip on wire .$ $(ii) The time taken by collar to reach C$ $if acceleration is half the value$ $calculated in part (i)$

Question Number 23488 Answers: 0 Comments: 0

area of a(1−cos θ)

$a r e a o f a (1 - \cos θ)$

Question Number 23485 Answers: 0 Comments: 0

(1/(cos (x−a)cos (x−b)))

$\frac{1}{\cos (x - a) \cos (x - b)}$

Question Number 23481 Answers: 0 Comments: 5

Which of the diagrams represents variation of total mechanical energy of a pendulum oscillating in air as function of time?

$Which of the diagrams represents$ $variation of total mechanical energy of$ $a pendulum oscillating in air as function$ $of time ?$

Question Number 23479 Answers: 0 Comments: 0

Common solution. (d/dy)(u_x +u)+2x^2 y(u_x +u)=0.

$Common solution .$ $\frac{d}{d y} (u_{x} + u) + 2 x^{2} y (u_{x} + u) = 0 .$

Question Number 23477 Answers: 0 Comments: 0

Find the value of x, ∫_(−∞) ^x dx = ∫∣± sinh cot ln (15−(√(33+x)))∣ dx

$Find the value of x,$ $\int_{- \infty}^{x} d x = \int ∣ \pm \sinh \cot \ln (15 - \sqrt{33 + x}) ∣ dx$

Question Number 23476 Answers: 0 Comments: 0

Question Number 23472 Answers: 1 Comments: 1

Question Number 23471 Answers: 1 Comments: 0

Prove that ΣΣ_(0≤i<j≤n) ((1/(^n C_i )) + (1/(^n C_j ))) = Σ_(r=0) ^(n−1) ((n − r)/(^n C_r )) + Σ_(r=1) ^n (r/(^n C_r ))

$P r o v e t h a t$ $\underset{0 ⩽ i < j ⩽ n}{Σ Σ} (\frac{1}{^{n} C_{i}} + \frac{1}{^{n} C_{j}}) = \underset{r = 0}{\sum^{n - 1}} \frac{n - r}{^{n} C_{r}} + \underset{r = 1}{\sum^{n}} \frac{r}{^{n} C_{r}}$

Question Number 23458 Answers: 0 Comments: 1

Question Number 23445 Answers: 1 Comments: 0

Solve the equation: (∂^2 u/(∂x∂y)) = sin(x)cos(y), subjected to the boundary conditions at y = (π/2), (∂u/∂x) = 2x and x = π, u = 2sin(y)

$Solve the equation : \frac{\partial^{2} u}{\partial x \partial y} = \sin (x) \cos (y), subjected to the boundary$ $conditions at y = \frac{π}{2}, \frac{\partial u}{\partial x} = 2 x and x = π, u = 2 \sin (y)$

Question Number 23444 Answers: 0 Comments: 0

Question Number 23442 Answers: 1 Comments: 2

Find a unit vector which is perpendicula to a vector A(3coma5coma1) Sorry for writing coma cuz i dnt see a key for it

$Find a unit vector which is perpendicula$ $to a vector A (3 coma 5 coma 1)$ $Sorry for writing coma cuz i dnt see a key for it$

Question Number 23433 Answers: 0 Comments: 0

∫_0 ^∞ X^6 e^(−x/2) dx=

$\int_{0}^{\infty} X^{6} e^{- x / 2} d x =$

Question Number 23432 Answers: 1 Comments: 0

∫_0 ^a f(x)dx=

$\int_{0}^{a} f (x) d x =$

Question Number 23431 Answers: 0 Comments: 0

If X is a discrete random variable then p(X≥a)=

$I f X i s a d i s c r e t e r a n d o m v a r i a b l e t h e n p (X ⩾ a) =$

Question Number 23429 Answers: 0 Comments: 1

An asymptote to the curve y^2 (1+x)=x^2 (1−x) is

$A n a s y m p t o t e t o t h e c u r v e y^{2} (1 + x) = x^{2} (1 - x) i s$

Question Number 23428 Answers: 2 Comments: 0

the curve ay^2 =x^2 (3a−x) cuts the y-axis at

$t h e c u r v e {a y}^{2} = x^{2} (3 a - x) c u t s t h e y - a x i s a t$

Question Number 23426 Answers: 1 Comments: 0

just a silly question: write a correct maths equation using only symbols below. Each must be used and only once. 2, 3, 4, 5, =, +

$j u s t a s i l l y q u e s t i o n :$ $w r i t e a c o r r e c t m a t h s e q u a t i o n$ $u s i n g o n l y s y m b o l s b e l o w . E a c h$ $m u s t b e u s e d a n d o n l y o n c e .$ $2, 3, 4, 5, =, +$

Question Number 23425 Answers: 0 Comments: 0

a,b,c>0 ⇒((a^3 +b^3 +c^3 )/((a+b)(b+c)(c+a)))≥(3/8) ?

$a, b, c > 0 \Rightarrow \frac{a^{3} + b^{3} + c^{3}}{(a + b) (b + c) (c + a)} ⩾ \frac{3}{8} ?$

Question Number 23419 Answers: 2 Comments: 0

Question Number 23418 Answers: 1 Comments: 0

∫sec^2 (√x) /(√x) dx

$\int \sec^{2} \sqrt{x} / \sqrt{x} dx$

Question Number 23411 Answers: 2 Comments: 1

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