`` For instance, Hesperus agreed to help me find my property, and I agreed to take him to Earth.

For the three days that it rests on Earth, righteous souls sit at the head of their body, chanting the Ustavaiti Gathas with joy, while a wicked person sits at the feet of the corpse, wails and recites the Yasna.

For example, the full moon has an angular diameter of approximately 0. 5 °, when viewed from Earth.

For instance, the name " Lord Sto Odin " in the story " Under Old Earth " is derived from the Russian words for " One hundred and one ", сто один.

For example, in the 19th century, the Sun appeared to be no more than 20 million years old, but the Earth appeared to be no less than 300 million years ( resolved by the discovery of nuclear fusion and radioactivity, and the theory of quantum mechanics ); or current attempts to resolve theoretical differences between quantum mechanics and general relativity.

For example, a seated passenger in a moving airplane has zero kinetic energy relative to the airplane, but non-zero kinetic energy ( and higher total energy ) relative to the Earth.

For Earth, on average L is equal to 1. 384 km, which is much larger than the Moon's semimajor axis of 3. 844 km.

; In Preparation-Forgotten Futures XII: Empire of Earth: Announced with the release of FF XI, FF XII will be a setting based on Victorian stories of interplanetary and interstellar travel and warfare, primarily " The Struggle For Empire " by Robert W. Cole

For an earthbound observer, objects in the sky complete one revolution around the Earth in 1 day.

For example, in a work of science fiction, some astronaut could use the word, furusato, meaning " my hometown ", when referring to planet Earth.

For example: some early medieval manuscripts of Macrobius include maps of the Earth, including the antipodes, zonal maps showing the Ptolemaic climates derived from the concept of a spherical Earth and a diagram showing the Earth ( labeled as globus terrae, the sphere of the Earth ) at the center of the hierarchically ordered planetary spheres.

For example, an observer will see a ball fall the same way in a rocket ( left ) as it does on Earth ( right ), provided that the acceleration of the rocket provides the same relative force.

For this reason, astronomical position determination – measuring the direction of the plumbline by astronomical means – works fairly well provided an ellipsoidal model of the figure of the Earth is used.

For example, Campbell states that, " There have been systems of religion where the mother is the prime parent, the source ... We talk of Mother Earth.

For the novel by John and Carole Barrowman, see Hollow Earth ( novel )

For example, a ball dropped towards the ground does not go exactly straight down because the Earth is rotating.

For example, the centrifugal acceleration of the Earth because of its rotation about the Sun is about thirty million times greater than that of the Sun about the galactic center.

For example Venus orbits about 5. 2 km / s faster than Earth and Mars orbits about 5. 7 km / s slower.

For example, a tree could be stationary with respect to an observer on earth, however it will be viewed as moving along with planet Earth for an observer in space.

For example, the " jerk " produced by falling from outer space to the Earth is not particularly useful given the gravitational acceleration changes very slowly.

For instance, a claim that was first propagated in the 19th century and is still very common in popular culture is the supposition that all people in the Middle Ages believed that the Earth was flat.

For example, an object in free-fall near the Moon will experience less gravitational field, and hence accelerate slower than the same object would if it were in free-fall near the Earth.

For example no one would need to calculate the authalic latitude of the Eiffel Tower.

For an engine speed of 5000 rpm, a gear ratio of 4.00 to 1, and a tire radius of 13 inches, the equation would look like this: Af

For example, P might be the circle with radius 1 and center ( 0, 0 ): P =

For instance, together with the spectral radius formula, it implies that the C *- norm is uniquely determined by the algebraic structure:

For trajectories other than circular motion, for example, the more general trajectory envisioned in the image above, the instantaneous center of rotation and radius of curvature of the trajectory are related only indirectly to the coordinate system defined by u < sub > ρ </ sub > and u < sub > θ </ sub > and to the length | r ( t )|

For example, a circle of radius 2 may be described as the set of all points whose coordinates x and y satisfy the equation x < sup > 2 </ sup > + y < sup > 2 </ sup > = 4.

( For example, in spherical coordinates, let radius r go to R² / r where R is the Earth's radius.

For Md < sup >+</ sup >, an ionic radius of 0. 117 nm was found.

For a typical cluster with 1, 000 stars with a 0. 5 parsec half-mass radius, on average a star will have an encounter with another member every 10 million years.

For example, the melting point, the first three ionization energies, and the hydration energy are greater than those of neodymium and lower than those of samarium ; similarly, the estimate for the boiling point, ionic ( Pm < sup > 3 +</ sup >) radius, and standard heat of formation of monatomic gas are greater than those of samarium and less those of neodymium.

For example, in Z < sup > n </ sup > with Euclidean metric, a sphere of radius r is nonempty only if r < sup > 2 </ sup > can be written as sum of n squares of integers.

For the sphere each normal section through a given point will be a circle of the same radius, the radius of the sphere.

For a rotating object, the linear distance covered at the circumference in a radian of rotation is the product of the radius with the angular speed.

Consider now the acceleration due to the sphere of mass M experienced by a particle in the vicinity of the body of mass m. With R as the distance from the center of M to the center of m, let ∆ r be the ( relatively small ) distance of the particle from the center of the body of mass m. For simplicity, distances are first considered only in the direction pointing towards or away from the sphere of mass M. If the body of mass m is itself a sphere of radius ∆ r, then the new particle considered may be located on its surface, at a distance ( R ± ∆ r ) from the centre of the sphere of mass M, and ∆ r may be taken as positive where the particle's distance from M is greater than R. Leaving aside whatever gravitational acceleration may be experienced by the particle towards m on account of ms own mass, we have the acceleration on the particle due to gravitational force towards M as:

For example, if the given manifold is a 2-sphere, one can picture the tangent space at a point as the plane which touches the sphere at that point and is perpendicular to the sphere's radius through the point.

For example, consider a circle of radius r. The main pieces of information a program needs in order to draw this circle are

Thus the Green's function describes the influence at of the data f and g. For the case of the interior of a sphere of radius a, the Green's function may be obtained by means of a reflection ( Sommerfeld, 1949 ): the source point P at distance ρ from the center of the sphere is reflected along its radial line to a point P that is at a distance

For homonuclear A – A bonds, Linus Pauling took the covalent radius to be half the single-bond length in the element, e. g. R ( H – H, in H < sub > 2 </ sub >) = 74. 14 pm so r < sub > cov </ sub >( H ) = 37. 07 pm: in practice, it is usual to obtain an average value from a variety of covalent compounds, although the difference is usually small.

For radial distances from the center which are much greater than the Schwarzschild radius, the accelerations predicted by the Schwarzschild solution are practically identical to those predicted by Newton's theory of gravity.

For any natural number n, an n-sphere of radius r is defined as the set of points in ( n + 1 )- dimensional Euclidean space which are at distance r from a central point, where the radius r may be any positive real number.

For any natural number n, an n-sphere of radius r is defined as the set of points in ( n + 1 )- dimensional Euclidean space that are at distance r from some fixed point c, where r may be any positive real number and where c may be any point in ( n + 1 )- dimensional space.

For the standard atmosphere, the effective Earth radius is 4 / 3 that of the actual Earth radius.