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Question Number 25509 Answers: 0 Comments: 1

Question Number 25736 Answers: 0 Comments: 0

Question Number 25483 Answers: 1 Comments: 0

valute ∫(1/((x−1)^2 ))(/((x^2 +4)))dx

$v a l u t e \int \frac{1}{{(x - 1)}^{2}} \frac{}{(x^{2} + 4)} d x$

Question Number 25476 Answers: 1 Comments: 0

convert 1234.24_8 to base 10

$c o n v e r t 1234 . 24_{8} t o b a s e 10$

Question Number 25472 Answers: 1 Comments: 0

slolve the definite integral∫_1^ ^2 (1/x)dxusingg> ng trapezoidal rule with 4 sub intervals hencefind an approximate value of ln 2.

$s l o l v e t h e d e f i n i t e i n t e g r a l \int_{1^{}}^{2} \frac{1}{x} d x u s i n g g > n g$ $t r a p e z o i d a l r u l e w i t h 4 s u b i n t e r v a l s$ $h e n c e f i n d a n a p p r o x i m a t e v a l u e o f$ $l n 2 .$

Question Number 25414 Answers: 1 Comments: 0

if 10^(10 ) electrons are removed neutral bodyb body the charge acquired by the body is? ?

$i f 10^{10} e l e c t r o n s a r e r e m o v e d n e u t r a l b o d y b$ $b o d y t h e c h a r g e a c q u i r e d b y t h e b o d y i s ?$ $?$

Question Number 25410 Answers: 0 Comments: 0

Question Number 25780 Answers: 1 Comments: 0

every periodic function is differentiable.true or false justify

$e v e r y p e r i o d i c f u n c t i o n i s$ $d i f f e r e n t i a b l e . t r u e o r f a l s e j u s t i f y$

Question Number 25275 Answers: 0 Comments: 0

Question Number 25103 Answers: 1 Comments: 0

Question Number 25091 Answers: 1 Comments: 0

A particle of mass m moving with speed u collides perfectly inelastically with a sphere of radius R and same mass, at rest, at an impact parameter d. Find (a) Angle between their final velocities (b) Magnitude of their final velocities

$A p a r t i c l e o f m a s s m m o v i n g w i t h$ $s p e e d u c o l l i d e s p e r f e c t l y i n e l a s t i c a l l y$ $w i t h a s p h e r e o f r a d i u s R a n d s a m e$ $m a s s, a t r e s t, a t a n i m p a c t p a r a m e t e r$ $d . F i n d$ $(a) A n g l e b e t w e e n t h e i r f i n a l v e l o c i t i e s$ $(b) M a g n i t u d e o f t h e i r f i n a l$ $v e l o c i t i e s$

Question Number 25086 Answers: 0 Comments: 4

Question Number 25058 Answers: 1 Comments: 0

Two objects slide over a frictionless horizontal surface. The first object, mass m_1 = 5 kg, is propelled with a speed u = 4.5 m/s towards the second object, mass m_2 = 5 kg, which is initially at rest. After the collision, both objects have velocities which are directed at θ = 60° on either side of the original line of motion of the first object. What can you say about the elasticity of collision?

$T w o o b j e c t s s l i d e o v e r a f r i c t i o n l e s s$ $h o r i z o n t a l s u r f a c e . T h e f i r s t o b j e c t,$ $m a s s m_{1} = 5 k g, i s p r o p e l l e d w i t h a$ $s p e e d u = 4.5 m / s t o w a r d s t h e s e c o n d$ $o b j e c t, m a s s m_{2} = 5 k g, w h i c h i s$ $i n i t i a l l y a t r e s t . A f t e r t h e c o l l i s i o n,$ $b o t h o b j e c t s h a v e v e l o c i t i e s w h i c h a r e$ $d i r e c t e d a t θ = 60 ° o n e i t h e r s i d e o f$ $t h e o r i g i n a l l i n e o f m o t i o n o f t h e$ $f i r s t o b j e c t . W h a t c a n y o u s a y a b o u t$ $t h e e l a s t i c i t y o f c o l l i s i o n ?$

Question Number 25038 Answers: 1 Comments: 0

For a particle of a rotating rigid body, v = rω. So (1) ω ∝ (1/r) (2) ω ∝ v (3) v ∝ r (4) ω is independent of r

$For a particle of a rotating rigid body,$ $v = r ω . So$ $(1) ω \propto (1 / r)$ $(2) ω \propto v$ $(3) v \propto r$ $(4) ω is independent of r$

Question Number 25013 Answers: 0 Comments: 3

With reference to figure of a cube of edge a and mass m, state whether the following are true or false. (O is the centre of the cube.) (1) The moment of inertia of cube about z-axis is, I_z = I_x + I_y (2) The moment of inertia of cube about z′ is, I_(z′) = I_z + ((ma^2 )/2) (3) The moment of inertia of cube about z′′ is, I_(z′) = I_z + ((ma^2 )/2) (4) I_x = I_y

$With reference to figure of a cube of$ $edge a and mass m, state whether the$ $following are true or false . (O is the$ $centre of the cube .)$ $(1) The moment of inertia of cube$ $about z - axis is, I_{z} = I_{x} + I_{y}$ $(2) The moment of inertia of cube$ $about z^{'} is, I_{z^{'}} = I_{z} + \frac{{m a}^{2}}{2}$ $(3) The moment of inertia of cube$ $about z^{″} is, I_{z^{'}} = I_{z} + \frac{{m a}^{2}}{2}$ $(4) I_{x} = I_{y}$

Question Number 25000 Answers: 1 Comments: 0

find x,y from the equation: (1/2)x−yi+(1/(1+i))=((√(1+ω^8 ))+(√(1+ω^(10) )))^4

$f i n d x, y f r o m t h e e q u a t i o n :$ $\frac{1}{2} x - y i + \frac{1}{1 + i} = {(\sqrt{1 + ω^{8}} + \sqrt{1 + ω^{10}})}^{4}$

Question Number 24997 Answers: 0 Comments: 0

Question Number 24985 Answers: 0 Comments: 0

Question Number 24961 Answers: 0 Comments: 0

Question Number 24945 Answers: 0 Comments: 4

A particle of mass m moving with a speed v hits elastically another stationary particle of mass 2m on a smooth horizontal circular tube of radius r. The time in which the next collision will take place is equal to

$A particle of mass m moving with a$ $speed v hits elastically another$ $stationary particle of mass 2 m on a$ $smooth horizontal circular tube of$ $radius r . The time in which the next$ $collision will take place is equal to$

Question Number 24934 Answers: 0 Comments: 3

A uniform circular disc of mass 1.5 kg and radius 0.5 m is initially at rest on a horizontal frictionless surface. Three forces of equal magnitude F = 0.5 N are applied simultaneously along the three sides of an equilateral triangle xyz with its vertices on the perimeter of the disc. One second after applying the forces, the angular speed of the disc in rad/s is :

$A uniform circular disc of mass 1.5 kg$ $and radius 0.5 m is initially at rest on a$ $horizontal frictionless surface . Three$ $forces of equal magnitude F = 0.5 N$ $are applied simultaneously along the$ $three sides of an equilateral triangle$ $x y z with its vertices on the perimeter$ $of the disc . One second after applying$ $the forces, the angular speed of the disc$ $in rad / s is :$

Question Number 24909 Answers: 0 Comments: 0

Question Number 24893 Answers: 0 Comments: 2

About a collision which of the following are not correct a. Physical touch is a must b. Particles cannot change c. Effect of external force is not considered d. Momentum may or may not change multi−correct question

$About a collision which of$ $the following are not correct$ $a . Physical touch is a must$ $b . Particles cannot change$ $c . Effect of external force is not considered$ $d . Momentum may or may not change$ $multi - correct question$

Question Number 24879 Answers: 0 Comments: 4

A particle of mass m is fixed to one end of a light rigid rod of length l and rotated in a vertical circular path about its other end. The minimum speed of the particle at its highest point must be

$A particle of mass m is fixed to one end$ $of a light rigid rod of length l and rotated$ $in a vertical circular path about its$ $other end . The minimum speed of the$ $particle at its highest point must be$

Question Number 24877 Answers: 0 Comments: 7

Question Number 24858 Answers: 2 Comments: 0

If three positive numbers a, b, c are in A.P. and (1/a^2 ), (1/b^2 ), (1/c^2 ) also in A.P., then (1) a = b = c (2) 2b = 3a + c (3) b^2 = ((ac)/8) (4) 2c = 2b + a

$If three positive numbers a, b, c are in$ $A . P . and \frac{1}{a^{2}}, \frac{1}{b^{2}}, \frac{1}{c^{2}} also in A . P ., then$ $(1) a = b = c$ $(2) 2 b = 3 a + c$ $(3) b^{2} = \frac{a c}{8}$ $(4) 2 c = 2 b + a$

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