A negative ion is a atom that has an extra electron, but the same # of protons
Option A overweight
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The starting and ending points of the motion are the same.. . . . .
Answer:
20m/s due east
Explanation:
Given parameters:
Displacement eastward = 200m
Time = 10s
Unknown:
Velocity = ?
Solution:
Velocity is the displacement divided by time;
Velocity =
Velocity =
= 20m/s due east