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# The square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit.
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# and square
# The description of nature is essentially probabilistic, with the probability of an event related to the square of the amplitude of the wave function.
# Electric charges attract or repel one another with a force inversely proportional to the square of the distance between them: unlike charges attract, like ones repel.
# For a given orbit, the ratio of the cube of its semi-major axis to the square of its period is constant.
A Sine wave | sinusoidal curve1 = Peak amplitude (), 2 = # Peak-to-peak_amplitude | Peak-to-peak amplitude (), 3 = Root mean square | RMS amplitude (), 4 = Wave period ( not an amplitude )
# A high-pass filter ( green trace ) will distort the shape of a square wave by reducing its low frequency components.
# the gain of each channel is made proportional to the rms signal level and inversely proportional to the mean square noise level in that channel.
# His studies on the diffusion of gases resulted in " Graham's Law ", which states that the rate of effusion of a gas is inversely proportional to the square root of its molar mass.
# both the rank and file ( if neither alone is sufficient to identify the piece — which occurs only in rare cases where one or more pawns have promoted, resulting in a player having three or more identical pieces able to reach the same square ).
# Roll the die, and place a white bishop on the black square indicated by the die, counting from the left.
# Roll the die, and place a white bishop on the white square indicated ( 1 indicates b1, 2 indicates d1, and so on ).
# Unattacked: No square between the king's initial and final squares ( including the initial and final squares ) may be under attack by an enemy piece.
# Unimpeded: All the squares between the king's initial and final squares ( including the final square ), and all of the squares between the rook's initial and final squares ( including the final square ), must be vacant except for the king and castling rook.
# Five-pointed star is inscribed into a circle with a diameter of ⅛ of the flag height, the circle is tangent to the upper side of the square.
# and orbital
# The Slater-type orbital ( STO ) is a form without radial nodes but decays from the nucleus as does the hydrogen-like orbital.
# The form of the Gaussian type orbital ( Gaussians ) has no radial nodes and decays as e < sup >(- distance squared )</ sup >.
# As the planet moves around its orbit during a fixed amount of time, the line from the Sun to planet sweeps a constant area of the orbital plane, regardless of which part of its orbit the planet traces during that period of time.
Solar System # Inner Solar System | Inner solar system diagram showing the Trojan asteroids ( coloured green ) in front of and behind Jupiter along its orbital path.
# The squares of the orbital periods of planets are directly proportional to the cubes of the semi-major axis of the orbits.
# The sidereal month is defined as the Moon's orbital period in a non-rotating frame of reference ( which on average is equal to its rotation period in the same frame ).
1.001 seconds.