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Recent questions tagged q89

Moment of inertia of a body about an axis is $4\;kgm^2$. The body is initially at rest and a torque of $8\;Nm$ starts acting on it along the same axis. Work done by the torque in $20\;sec.$ in joules, is

asked Sep 17, 2013 by meena.p

1 answer

A smooth tunnel is dug along the radius of earth that ends at center. A ball is released from the surface of earth along tunnel. What is the velocity when it strike the center?

asked Aug 29, 2013 by meena.p

1 answer

A particle of mass m is moving in a circular path of constant radius 'r'. Such that the centripetal acceleration $a_c$ is varying with time as $a_c=k^2rt$ where R is a constant. What is the power on the particle

asked Aug 8, 2013 by meena.p

1 answer

The upper half of an inclined plane with inclination of $\phi$ is perfectly smooth while the lower half is rough. A body starting from rest at top will again come to rest at bottom if coefficient of friction for lower half is given by

asked Jul 15, 2013 by meena.p

1 answer

The complementary function of $(D^{2}+1)y=e^{2x}$ is

asked May 23, 2013 by poojasapani_1

1 answer

The diretrix of the parabola $y^{2}=x+4$ is

asked May 13, 2013 by poojasapani_1

1 answer

Evaluate:\[\int_{-1}^1 log \bigg(\large\frac{4-x}{4+x}\bigg)dx\]

asked Feb 4, 2013 by meena.p

1 answer

Without using derivatives find the maximum or minimum value of $ f(x)=-| x+5 |+3$

asked Jan 30, 2013 by meena.p

0 answers

For the following probability distribution:

asked Jan 10, 2013 by sreemathi.v

1 answer

If $f(x)=\left \{\begin{array}{1 1}mx+1, & if\;x\leq\large\frac{\pi}{2}\\\sin x+n, & if\;x>\large\frac{\pi}{2}\end{array}\right.$,is continuous at $x=\large\frac{\pi}{2}$,then

asked Jan 2, 2013 by sreemathi.v

1 answer

True or False: If A and B are two square matrices of the same order , then A+B = B+A.

asked Dec 24, 2012 by sreemathi.v

1 answer

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