411 REFERENCE · Wikibooks
Physics Exercises/Gravity
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
If ve and vo denotes the escape velocity and orbital velocity of a satellite corresponding to a circular orbit of radius R, then
and are not related
the orbital traced by planet around a star is in general
a circle
an ellipse
a parabola
a straight line
the period of a satellite in a circular orbit of radius R is T.What is the period of another satellite in a circular orbit of radius 4R
4T
T/8
T/4
8T
A satellite is moving around the earth in a circular orbit.Which of the following statement is correct
it is moving with a constant speed
it is falling freely towards earth
its velocity keeps on increasing
it is falling freely towards the earth its velocity keeps on increasing
a satellite is revolving round the earth in a circular orbit of radius R. work done by gravitational force in one revolution is
zero
What is the pressure in the center of the Earth assuming the constant density.