Physics

May 21, 2013

Freely falling bodies

Concept Notes 1 All objects in free fall experience same acceleration When there is no air, the acceleration of an object under free fall is independent of its mass

May 21, 2013

Horizontal Projectile Motion: Physics Notes

When an object is thrown from horizontal at an angle θ except 90°, then it will follow a trajectory and the motion is called projectile motion.  A horizontally thrown

May 21, 2013

Uniform Circular Motion

Uniform Circular Motion When a particle moves in a circle with a constant speed then the motion is known as uniform circular motion. We can consider an object moving

May 21, 2013

Artificial Satellite Basics

Satellite refers to any project that is orbiting earth, sun or other planetary bodies. Satellites can be artificial or natural. The artificial satellites basically work on principle of projectiles.

May 21, 2013

Geostationary and Geosynchronous Orbits

The core principle of an orbit is that as a satellite or object moved tangentially, it falls toward the earth / other body, but it moved so quickly that

May 21, 2013

Altitude of Geostationary Orbit

Important points The height of the geostationary orbit is 35786 kilometers above earth In Geostationary Orbit, the satellite moves with an orbital speed of 11068 km per hours. A

May 21, 2013

Polar Orbit & Clarke Orbit

Polar Orbit The Polar Orbit is not much suitable for communication purposes because it moved in a different direction than that of direction of earth’s rotation. So, the use

May 21, 2013

Low Earth Orbits

A satellite can also be placed in Low Earth Orbits (about 1,000 kilometers above the Earth (between 400 miles and 1,600 miles)). However, satellites in LEO need a higher

May 21, 2013

Medium Earth Orbit (MEO)

MEO systems operate at about 8,000-20,000 km above the Earth, which is lower than the GEO orbit and higher than most LEO orbits. The MEO orbit is a compromise

May 21, 2013

Polar Orbits

The Polar Orbit is not much suitable for communication purposes because it moves in a different direction than that of direction of earth’s rotation. So, the use of Polar

May 21, 2013

Sun-synchronous orbit

Sun-synchronous orbit or a heliosynchronous orbit very important because of its particular importance to satellites intended for remote sensing and military applications. A sun-synchronous orbit is one that lies

May 21, 2013

Surface Tension

Surface tension of a liquid is defined as the tangential force per unit length acting at right angles on an imaginary line drawn on the surface of the liquid. Its

May 21, 2013

Capillary Action

A glass tube with a very fine uniform bore is called a capillary tube. When a capillary tube is dipped vertically into a liquid contained in beaker, the liquid

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