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Syllabus

(a) 8/3 m (b) 8/15 m (c) 6 m (d) 7/3 m

with what velocity should a body be thrown up so that it rise to a height equal to the radius of the earth(g=10ms

^{-}^{2}at the surface)?(a) $\frac{\mathrm{L}}{4}$ (b) $\frac{{\displaystyle \sqrt{17}}}{{\displaystyle 4}}$ L (c) $\frac{\sqrt{5}\mathrm{L}}{2}$ (d) none of these

^{-11}NM^{2}/Kg^{2}, M=6.4*10^{24}Kg , R=6400 Km.^{2})plzz explain me

keplear's 3rd law?

=6400(√10-1)

= ?

H=13837 km

how to solve middle step

explain thisQ10). A planet has a radius R, and the density variation from its centre is given by $p\left(r\right)=p0\left(1-\frac{r}{R}\right),\mathrm{where}r\le R$. The acceleration due to gravity for the whole planet is

what is the newton's 2 law ?

what is the acceleration due to gravity at 0,infinity center of circle?

Escape velocity of an elephant form surface of planet is same as that escape velocity of a mouse. Is it TRUE?

^{-6}Ncalculate the gravitational constent ?

A satellite is moving in an orbit with half the speed requried to escape the earth's field. what is the height of the satellite?

why area is equal in second law of keple

Variation og g due to latitude of earth? It is not given in your study material.

^{-11}, R=6400km,M=6*10^{24}kg)what is kepeler's law of planetary motion?

A satellite of mass 'm' is revolving in circular orbit of radius 'r' round the earth. Its angular momentum w.r.t. the centre of its orbit is (M = mass of earth, G = universal gravitational constant)

^{th}power of the distance then the time period of the planet in circular orbit of radius R around the sun will be proportional to .......What is the minimum energy required to launch a satellite of mass m from the surface of a planet of mass M and radius R in circular orbit at an altitude 2R.

$A.\frac{5GmM}{6R}\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}B.\frac{2GmM}{3R}\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}C.\frac{GmM}{2R}\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}D.\frac{GmM}{3R}$

a)how does its weight change as it goes from the earth to the moon

b)will there be any change in its mass

_{21}== r2

_{12}A. 1/2 h

B. 1 h

C. 2 h

D. 4 h