Identify the situation in which the work done by gravity is non-zero. a) A satellite moving around earth in a circular orbit b) A freely falling body c) A block moving on a horizontal surface d) None of these 14. Potential energy of a system can be a) positive b) negative c) ...
An antenna system for a mobile telephone operates by radio channel between the mobile telephone () and at least one at a time of a group of satellites () revolving in polar orbit or quasi polar orbit around the earth. The antenna system includes a cone-shaped antenna () for transmission ...
The orbital parameters of a satellite revolving around 22 Kalliope indicate that the bulk density of this main-belt asteroid is 2.37 ± 0.4 grams per cubic centimeter. M-type asteroids such as Kalliope are thought to be the disrupted metallic cores of differentiated bodies. The low density indica...
The magnetic field at the centre of the orbit is View Solution When an electron revolves around the nucleus, then the ratio of magnetic moment to angular momentum is View Solution The satellite of mass m revolving in a circular orbit of radius r around the earth has kinetic energy E. then...
In particular, we consider two primaries revolving in a circular mutual orbit and two small bodies of equal mass, neither of which affects the motion of the primaries. If the small bodies are temporarily captured in the Hill sphere of the smaller primary, they may get close enough to each ...
Lightweight structures comprise of actual pieces or segments that give the crucial ability to function while weighing less than other possibilities as well
Bernard chose an allocentric point of view on the SEM by moving the ball in a circular orbit in front of the flashlight and pointing at the center of the orbit to mark the position of Earth. We see that as a clear sign of the effect that the allocentric point of view shown during the...
When the Greeks, after long observing the motions of the planets, saw that these motions might be rightly considered as produced by the motion of one wheel revolving in the inside of another wheel, these wheels were creations of their minds, added to the facts which they perceived by sense....
Calculate the velocity of a satellite that is in a circular orbit with a radius of 7.5 x 10^7 m measured from the center of the earth. 1. On the way to the moon, the Apollo astronauts reach a point where the Moon's gravitational pull is...
A satellite of mass 1600 kg moving in a circular orbit around the Earth at a height 340 km. Calculate its speed and the gravitational force on it due to the Earth. (Radius of the earth: 6380 km, mass of earth 5.98 times 10^{24} kg). A pl...