C. motion can be defined as change in position.
Answer:
Before sled starts to move it has a potential energy due to the elevation...and then that potential energy converted to kinetic energy due to presence of a velocity...the sled will continue to move if their is no resesive force...but however friction force is presence that cause the sled to stop....
Answer:
electrons
Explanation:
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There Are Actually 5 So I Will Give You All.... Size Of Atom, Nuclear Charge, Screening Effect (Also Known As Sheilding Effect), Penetration Effect And Electronic Configuration