In astronomy, Johannes Kepler published his three laws about planetary motion. It is one of the most important things in astronomy. So Kepler gives three laws about planetary motion.
<h3>What is motion?</h3>
Motion is a physical term in physics. If a particle of mass m and affected by some force F then it change its position in many different way. That is the motion of the object. It is a vector quantity.
<h3>What is Kepler's three laws?</h3>
In astronomy, Johannes Kepler published his three laws about planetary motion between 1609 and 1619. This shows about motion describe the orbits of planets around the Sun. So the three motions are shown following,
<u>First law</u>: Every planet in solar system that moves in a elliptical orbits where the sun always in the center of the motion.
<u>Second law</u>: Every planet covers the same amount of distance in a constant time no matter where the orbit of the planet placed. That means the velocity of every planet is not same. It varies along with the orbit. But every time the change of area is constant.
<u>Third law</u>: The orbital period of the planet is proportional with the cube of the semi major axis of the planet. It can be shown mathematically,
p²∝a³
Where we know,
p= The orbital period of the planet.
a= the semi major axis of the planet.
From the discussion we can easily shown that there are three laws of Kepler about planetary motion.
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Answer:
Magnetic domain, magnetic pole, magnetic field, ferromagnetic material.
Explanation:
Got it right on edge
Answer:
During constructive interference occurs at any location along the medium where two inferring waves are in the same direction. In this case both waves have upward displacement. Consequently the medium has an upward displacement has that is greater than the displacement of inferring pulses.
Answer:
Explanation:
This is a simple F = ma equation. We have the mass and we have the acceleration, so
F = 1298(17) and
F = 22066 which rounds correctly to
F = 22000N
Sitting comfortably in your soft chair, reading the book in your lap
or listening to your mp3 player with buds stuffed in your ears.
Your eyes are heavy, hard to hold them open, and the rest of you
is getting drowsy. From time to time, maybe every few minutes,
your soft chair rocks gently side to side a few times, then settles
down. It's getting dark outside, and you are getting sooo sleeepy . . .
Your soft chair is in Row-27 of the passenger airliner you're riding in.
The airplane is cruising 35,000 feet above the ground, and relative
to the people on the ground, you, the plane, and your book are all
traveling at almost 500 miles per hour.
______________________________________
You're relaxing on your beach chair, in your back yard, working on
your tan on a warm sunny day. Just like on the airplane last week,
you're warm and comfy, and getting drowsy.
Relative to the Earth's axis, you're moving at around 700 miles
per hour, but the direction of your motion is only changing by about
1 degree each 4 minutes.
Relative to the sun's axis, you're moving at almost 67,000 miles
per hour, but the direction of your motion is only changing by about
1 degree each day.