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3 Outline the principles of computed tomography (CT scanning)​

the first step is making objective observations.

they have to be based on a certain event and can be confirmed by others if it is right or not.

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this