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What is radioactivity?
Radioactivity: The process of spontaneous disintegration of the nuclei of heavy elements with the emission of certain radiations is known as natural radioactivity.
The nuclei of certain elements with atomic number more than 82 disintegrate by emitting alpha (α ), beta (β ) and gamma (c ) rays. This phenomenon is called radioactivity.
what is the physical significance of damping constent
It takes 46.0 J to raise the temperature of an 10.1 g piece of unknown substance from 13.0 o Cto 40.1 o C. What is the specific heat for the substance?
sho many examples
The number of independent directions in which a system (or gas molecule) can have motion, are called as the number of degrees of freedom of that molecule or object. The number of d
A floater to show surface tension Bend a piece of small copper wire into a ring about 8 cm in diameter. Attach two other pieces of wire rigidly to conflicting sides of the ring
what is scanning & transmission electron microscope
Please help I am stuck on this physics problem. Please cany anyone explain to me how to do it step by step please? If the speed of a car is increased by 135%, by what factor will
Why does a glass filled with water shatter when you run your finger along the rim of the glass? A piece of crystal stemware has a natural or resonant frequency that can be exc
According to their frequencies, waves are separated into three categories: (1) Audible or sound waves : Range 20 Hz to 20 KHz. These are formed by vibrating bodies like as voc
Forces: If a Force is applied to a body, it will cause that body to move. A body that is already moving will change its speed or direction. Note that the term 'change its spe
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