Based on the time measurements in the table, what can be said about the speed of the car on the lower track as compared to the higher track? A. Cars travel faster on the lower track.
B. Cars travel faster on the higher track.
C. There is no difference in speed.

How can the reasoning for the above answer be best explained? On the higher track, the elapsed time is

A. shorter
B. longer
C. equal
.

Calculate speeds for each track. How much faster was the car on the higher track than the lower track?

A. 0.56 m/s
B. 1.54 m/s
C. 3.50 m/s

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i just did this and got a 100.

hypothesising or postulating

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

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