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Why do you multiply 2 by the radius of the moon and pi to get the distance the moon travels in one revolution of the earth?
Wiki User
∙ 15y ago
From geometry it is known that the circumference of a circle is 2*pi*r - where r is the radius.
Assuming the orbit of the moon is a circle, then the distance traveled in one orbit is the circumference of the circle.
Wiki User
∙ 15y ago
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What is radius of earth in mm?
en.wikipedia.org/wiki/Earth_radiusfind the radius in km and multiply by 1 million.
Which is larger the Sun's radius or the distance between the Moon and Earth?
The sun's radius
How do you calculate the radius of the sun to the moon?
You can't really calculate the radius of a distance. The radius of something is half the distance from one side of a circle to the other. And besides, the sun and moon aren't always the same distance apart. Their distance varies by season, time of the month, and even time of day.
How far away are all of the planets from the sun?
Look in related links, "Planetary Attributes on Wikipedia". The column "Orbital Radius" shows the distance from the Sun, in AU. If you want that in kilometers, multiply the number of AUs by 150 million.
What is the average distance from the center of earth to the center of the moon?
km384,000Average Earth to Moon Distance: 384,403 km Equatorial Radius of the Earth: 6,357 kmEquatorial Radius of the Moon: 1,737 kmTotal: 392,497 km
Circumference of a cylinder?
It is the distance measured round its edge. multiply the radius (half the distance across it) by 3.14159
How do you find radius from revolution and distance?
Distance is number of revolutions times circumference. So divide the distance by the revolutions to get the circumference. Then divide the circumference by pi to get the diameter, and divide that by 2 to get the radius.
Is it possible to get measure the distance around a circle. If yes..How?
The distance around a circle is called the circumference of it. To find the circumference, multiply its radius by 2, then multiply by pi.
What is the speed of Mars relative to the sun?
Mars travels at somewhere around 24,000 m/s in its orbit around the sun. You can work this out by finding the distance of Mars to the Sun (the radius of orbit), finding the total distance of orbit (multiply your radius by 2*pi - assuming a circular orbit, which is ROUGHLY a good approximation), then divide by length of a Mars year. Enjoy.
How many yard in 1 rpm?
1 rpm means 1 revolution per minute. A yard is distance. The revolution can be translated into a distance by knowing the time of revolution and the radius of the circle of revolution.
What is displacement in bike?
formula for displacement: A=(pi)r^2 A is Area Pi is 3.14 and R is the radius of the cylinder, this is the piston in Square inches. then multiply that by the distance the piston travels, that is the displacement of one cylinder to find total engine displacement multiply that by how many pistons are in the engine to get total engine displacement
How do you get circumfrence of a circle?
The circumference of a circle can be found by multiplying its diameter (the distance from one point on the circle to its opposite point) by the irrational number pi. The value of pi is about 3.14, but it has an infinite number of nonrepeating digits. The circumference can also be expressed as 2(pi)r, where r is the radius. The radius is the distance from the center of the circle to any point on the circle. It is equal to half of the radius.
If two circles had the same radius and intersected at exactly one point how would you find the distance between the two centers of the circle?
Multiply the radius by 2.
How far will a wheel of radius 5 cm travel in two revolutions?
In each revolution, the wheel would advance 2 x pi x radius. Multiply this by the number of revolutions.
How do you convert radius into perimeter?
Multiply the radius by itself, then multiply the result by Pi.
A body is moving along a circular path of radius rwhat will be the distance traveled and displacement of the body when it completes half a revolution?
double of the radius means equal to diameter
What is the radius of a circle if the circumference is 6?
you simply multiply the radius by 2 and multiply that by 3.14159
