о 5-10 A pulsed radar source is at rest at the point x-0. A large meteorite moves with constant velocity o toward the source; it is at the point x=-1 at 1-0. A first radar pulse is emitted by the source at t=0, and a second pulse at to (fo <l/c). The pulses are re- flected by the meteorite and return to the source. - (a) Draw a coordinate system like that shown in the diagram, and on it mark position versus time (i.e., the world lines) for the following: (1) the source, (2) the meteorite, (3) the two outgoing pulses, (4) the reflected pulses. (b) With or without the diagram, evaluate the time interval be- tween the arrivals at x=0 of the two reflected pulses. (c) With or without the diagram, evaluate the time interval be- tween the arrivals at the meteorite of the two outgoing pulses, as mea- sured in the rest frame of the meteorite.