###### Answer: B. Isla had a different time than Hazel.

The velocity of an object is the rate of change of its position with respect to a frame of reference and is a function of time. Velocity is equivalent to a specification of an object’s speed and direction of motion (e.g. 60 km/h to the north). Velocity is a fundamental concept in kinematics the branch of classical mechanics that describes the motion of bodies.

Velocity – Wikipedia

Velocity – Wikipedia

Velocity – Wikipedia

Speed of gravity – Wikipedia

Sat Aug 16 2003 14:30:00 GMT-0400 (Eastern Daylight Time) · The faster the relative velocity the greater the time dilation between one another with the rate of time reaching zero as one approaches the speed of light (299 792 458 m/s ). Theoretically time dilation would make it possible for passengers in a fast-moving vehicle to advance further into the future in a short period of their own time.

In classical theories of gravitation the changes in a gravitational field propagate. A change in the distribution of energy and momentum of matter results in subsequent alteration at a distance of the gravitational field which it produces. In the relativistic sense the “speed of gravity” refers to the speed of a gravitational wave which as predicted by general relativity and confirmed by …

Velocity definition. i like the definition in terms of velocity : I sp = V e ( m/s ) because it intuitively relates to the physics of propulsion. engines with higher specific impulse are able to eject reaction mass at a higher velocity e.g. ion engines have V e ~ 30 km/s whereas chemical rockets have V e ~3 km/s. — Preceding unsigned comment added by 67.122.137.191 04:25 18 November 2004 (UTC)

The Pioneer anomaly or Pioneer effect was the observed deviation from predicted accelerations of the Pioneer 10 and Pioneer 11 spacecraft after they pass…