The figure shows the speed as a function of time for an object in free fall near the surface of the earth. 
The object was dropped from rest in a long evacuated cylinder.
-What is the numerical value of the slope of the line?
Definitions:
Accounts Receivable
The money owed to a business or practice for services provided or goods sold on credit but not yet paid for by clients or customers.
Charge Slip
A document or form used to record the services rendered and the charges incurred for a patient in a medical or dental practice.
Debit Balance
Occurs when the amount paid is less than the total due.
Credit Balance
The amount of money in a financial account that is available for withdrawal or use, exceeding what is owed.
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