A space probe of the surface of Mars sends a radio signal back to the Earth, a distance of 3.91 x 108 km. Radio waves travel at the speed of light (3.00 x 108 m/s). (a) How far away is the space probe? (b) How many seconds does it take for the signal to reach the Earth? (c) How many hours is this?
Displacement, Velocity and Acceleration
In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.
Linear Displacement
The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.
A space probe of the surface of Mars sends a radio signal back to the Earth, a distance of 3.91 x 108 km. Radio waves travel at the
(a) How far away is the space probe?
(b) How many seconds does it take for the signal to reach the Earth?
(c) How many hours is this?
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