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VELOCITY:
The time rate of change of displacement of a body is known as velocity. It is represented by V ?.
a) What force is needed to give amass of 20kg an acceleration of 30m/s 2 ? b) Find the accelerating force when a car having a mass of 1.7Mg enhances its speed with a constant a
EFFECT OF FIELD ON SUPERCONDUCTIVITY: Critical Magnetic field, H c is the maximum field that can be applied to a superconductor without destroying the superconducting behaviour
Q. Geosynchronous Orbit Communications satellites are able to be placed in equatorial orbits at a distance which results in an orbital period of one day. Therefore the satellit
An ice-skater with a moment of inertia of 1.1 kg/m2 starts to spin with her arms extended. After 25 s, she has an angular velocity of 15 rev/s. What is the net torque acting on
What is Work Everyone knows what work is, right? It is anything you would rather not do, like take out the trash, or study for a test. Well, not quite. In everyday language thi
Electron distribution: The atoms of a solid have electrons rotating in orbits around the positive nucleus. This is true of gases and liquids as well. These orbiting electrons
What is diffraction of light? Illustrate a graph showing the variation of intensity with angle in a single slit diffraction experiment. Write single feature which distinguishes the
It describes that the total energy (pressure energy, potential energy and kinetic energy) of an incompressible and non-viscous fluid in steady flow by a pipe remains constant throu
A football player kicks a field goal from a distance of 45 m from the goalpost. The football is launched at a 35° angle above the horizontal. What initial velocity is neede
ROCKET PROPULSION: The motion of a rocket is an application of the law of conservation of momentum and Newton's 3rd law of motion. The gases ejected out from the combustion cha
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