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What are The Stars?
The star is made of dust and gas in space.
Essentially it has many stages they are
1.black hole
2.nuetron star
3.supernova
4.red giant stage
Our solar system having a big star name sun which is attracting 8 other planets with its gravity.
It has an expected age of 10 billion years.
When an orchestra is tuning up, the first violinist plays a note at 256 Hz. a. What is the wavelength of that sound wave if the speed of sound in the concert hall is 340 m/s?
The sense of vision consist of three major components : The eyes that focus an image from the outside world on the light sensitive retina The system of millions of nerve
compton effect and quantum nature of light
When the electron is known energy from external source, it goes to higher energy level. This process is called as excitation. The minimum energy needed to excite an atom is know
A concave lens when given in air has a focal length of 0.4 m and has a refractive index of 3/2. Evaluate its focal length when immersed in water of refractive index 4/3?
1]What is the difference between a photon and a neutron? 2]Why are they massless?
essay writting
A bullet with mass m is fired into a block of a mass M intially at rest at the edge of a frictionless table of a given height. the bullet remains in the block, and after the impact
division
How noisy is an illuminator? It is very noisy, slightly so or completely silent, depending upon the power source and the construction. There heat dissipation is something which
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