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Johannes Kepler revealed three empirical laws by using the data on planetary motion, pertaining to the orbit of planets. These laws are contained here because of the huge importance they have regarding the motion of planets.
1. First law (Law of orbit): Every planet moves in an elliptical orbit, with the light at single focus of the ellipse. This is known as law of orbits. For simplification, the orbit can be supposed to be nearly circular because circle is special case of ellipse. Every planet has a definite orbit and dissimilar planets have different orbits.
2. Second law (Law of area): A line joining any planet to the sun (i.e. radius vector of the planet from sun) sweeps equivalent areas in equal interval of time i.e. the linear speed of the planet changes such that the areal velocity of planet is constant. The linear speed is maximum when the planet is nearest to sun, whereas it is minimum when the planet is farthest from the sun.
3. Third law (Law of period): The Square of the time periods of the planet is proportional to the cube of semi-major axis of ellipse. If T is time period of revolution of a planet around the sun and a is the semi-major axis of the orbit of ellipse, then
Determine the Charge of the lithium ion A mass spectrometer often is used in carbon dating to verify the ratio of C-14 isotopes to C-12 isotopes in a biological sample. This ra
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Electrons are emitted from a photosensitive surface when it is illuminated by green light but electron emission does not take place by yellow light. Will the electrons be emitted w
an oven is turned on at a room temperature of 20C and it takes 10 min to reach a temperature of 190C.a try of cookies is placed in the oven to bake for 10 min.the oven is then turn
FORCE: "Force is that agency which causes a body to alter its state of motion or rest". It is denoted by F ?
1. Brief definitions of the study design, sampling strategy, and outcome variable(s) Study design: cross sectional study is carried out at just one point in time or over a sho
what is reduce mass in two mass system?
Hi there, I have online take home quiz tmr, just wondering if there''s a way that you guys can help me. I can take a screenshot of the questions and send it to you. I need the ans
The Zinc Blende or Sphalerite Structure. Zinc blende is same to diamond cubic structure, but the two FCC sub-lattices are occupied by atoms of two dissimilar elements. Some of
Write the symbol sad truth table of an AND gate define how this gate is realised in practice by using two diodes.
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