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A negative point charge of 10-6 coulomb is located in air at the origin of a rectangular coordinate system. A second negative point charge of 10-4 is situated on the positive x-axis at a distance of 50 cm from the origin. What is the force on the second charge beacuse of first?
What does held nucleons together in a nucleus? Nuclear force. It is the nuclear force which fasten the nucleons together and is responsible for the stability of nucleus.
The value of G, the universal gravitational constant, was measured experimentally by: a) Newton b) Cavendish c) Copernicus d) Kepler Ans: The value of th
Path of a projectile The apparatus below can be used to indicate the independence of the horizontal and vertical velocities of a projectile. The projectile is a metal ball, and
Elevator Problem
How are the ultrasonics deals with sound waves? Ultrasonics, deals along with sound waves which pass a specified point at least 20,000 times per second. As ultrasonic waves vib
What is the cause of Brownian motion? Molecules in a gas move constantly, freely, randomly, in all directions and at high speeds. They are able to do so because the intermolecu
about mass defect
Illustrate the term semiconductor laser. Semiconductor Laser (Laser diode): It is a laser wherein semiconductors (characteristically direct band-gap semiconductors) can be u
Construction & chemical action of Cell: In cells, an electrolyte separates two charge collecting materials called electrodes, to which external connections are made. The electr
why phase is defined only for periodic motion ?
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