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Why might using speed of light to determine the length of the meter be more reliable than using a measured distance around earth?
Wiki User
∙ 9y ago
The speed of light in vacuum is a universal constant. The distance around the earth depends on the line of measurement. Because of its rotation, the earth is not a perfect sphere: its equatorial radius is 0.3% greater than its polar radius. Consequently the measurement is affected by the exact line along which the radius is measured.
Furthermore, there are two kinds of variations in the equatorial radius. One is a long-term variation caused by the distribution of mass on the surface: possibly the ocean mass. There is also the short term variation caused by the gravitational pull of the moon.
Wiki User
∙ 9y ago
Wiki User
∙ 13y agoMore accurate than what?
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Is speed an estimation often measured in kilometers per hour?
Yes, speed is commonly measured in kilometers per hour (km/h) in many countries around the world. This measurement is used to determine how fast an object is moving over a certain distance in a given amount of time.
Why is distance around the equator measured at 24783mi when the distance around the earth is measured at 24901 mi?
The Earth is not a perfect sphere, but an oblate spheroid, which means it is slightly flattened at the poles and bulging at the equator. This difference in shape causes the equatorial circumference to be longer than the polar circumference. The measurements you provided reflect this difference in distance due to Earth's shape.
What is the unit of metric distance?
If you define 'distance' as the shortest line between to objects. (Example: the moon and the Earth; or say, Suburb A and Suburb B, then such distances are measured in Metre if the distance is shorter than around about 1 Kilometre, or,. If the distance is greater than a few hundred Metre, it is always measured in Kilometre.
Is used to measure distance in the solar system is?
Inside our Solar System distances are measured in Astronomical Units (AU) which is the average distance from the Earth to the Sun, or about 93 million miles. Jupiter is about 5.5 AU distance from the sun or around 500 million miles. Distances outside our Solar System are usually measured in Light Years.
Blank is how far around the map the star is?
The distance around the map that the star spans is called the circumference.
Is speed an estimation often measured in kilometers per hour?
Yes, speed is commonly measured in kilometers per hour (km/h) in many countries around the world. This measurement is used to determine how fast an object is moving over a certain distance in a given amount of time.
How can I determine the distance around a circle if I know the distance across the circle?
The diameter times Pi gives you the circumference.
The distance around the widest part of a planet?
The distance around the widest part of a planet is known as the planet's equatorial circumference. It is the longest distance that can be measured around the planet, passing through its equator. An example would be Earth's equatorial circumference, which is about 24,901 miles (40,075 kilometers).
What is the distance measured around a circle?
It's called the "circumference" of the circle. It's equal to (pi) times (the circle's diameter).
Why do we measure circumference?
The circumference is the distance around a circle and it is measured by:- Circumference of a circle = 2*pi*radius or pi*diameter
Why is distance around the equator measured at 24783mi when the distance around the earth is measured at 24901 mi?
The Earth is not a perfect sphere, but an oblate spheroid, which means it is slightly flattened at the poles and bulging at the equator. This difference in shape causes the equatorial circumference to be longer than the polar circumference. The measurements you provided reflect this difference in distance due to Earth's shape.
Is circumference measured in cm?
Circumference can be measured in any linear measurement. It could be centimeters, meters, miles, inches etc. generally the circumference is the linear distance around a circle. When you have a perfect circle, it's fairly easy to calculate if you know the distance across the circle.
What is the distance around an official Olympics running track?
The Olympics uses a track of 400 meters in length, as measured in lane 1.
What is a five letter word ending in H meaning distance around a person's body?
The answer is girth.It's five letters, ending in H. The girth refers to the measured distance around an person's body.
What is the unit of metric distance?
If you define 'distance' as the shortest line between to objects. (Example: the moon and the Earth; or say, Suburb A and Suburb B, then such distances are measured in Metre if the distance is shorter than around about 1 Kilometre, or,. If the distance is greater than a few hundred Metre, it is always measured in Kilometre.
Is used to measure distance in the solar system is?
Inside our Solar System distances are measured in Astronomical Units (AU) which is the average distance from the Earth to the Sun, or about 93 million miles. Jupiter is about 5.5 AU distance from the sun or around 500 million miles. Distances outside our Solar System are usually measured in Light Years.
Blank is how far around the map the star is?
The distance around the map that the star spans is called the circumference.
