2 R
speed
P
Q
s
0
time
The diagram shows the speed / time graph for a train as it travels along a track.
For which part of the graph is the train's speed changing at the greatest rate?
(1 Point)
PQ
QR
o ООО
RS
ST

You have been called to testify as an expert witness in a trial involving a head-on collision. car a weighs 1515 lb and was traveling eastward. car b weighs 1125 lb and was traveling westward at 44.0 mph. the cars locked bumpers and slid eastward with their wheels locked for 22.5 ft before stopping. you have measured the coefficient of kinetic friction between the tires and the pavement to be 0.750 . how fast (in miles per hour) was car a traveling just before the collision? (this problem uses english units because they would be used in a u.s. legal proceeding.)

How would a small bar magnet be oriented when placed at position x?

An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet.whats one advantage of using electromagnetic in devices