Answer:
Acceleration
Explanation:
Speed is how fast something moves.
Velocity is how fast it moves and in what direction it moves in.
Acceleration is the change in how fast it moves. I.e. if it speed up or slows down.
Here we are not given a speed, but are told that the subway car slows down (a negative change in speed), which is a change in speed, therefore it is acceleration (or more accurately deceleration as it is negative acceleration, slowing down, but acceleration is usually used to describe both.)
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The options to be considered when determining the scope of an experiment are;
C: What results to report
D: The factor that will vary
<h3>Experiment</h3>
An experiment is simply defined as a scientific procedure that is done in order to make a discovery, test a hypothesis, or prove a known fact.
Now, when conducting an experiment, we must know exactly what we are testing for and this will in turn influence the result we will be reporting for.
Secondly, we must know that there is a possibility that the results may differ under different factors.
In conclusion, options C and D are correct.
The options missing are;
A. which data you will collect and plot.
B. the outcome you will investigate.
C. what results to report.
D. the factor that will vary.
Read more about Experiments at; brainly.com/question/15402972
Five types of digital dedicated lines are ISDN lines, DSL, FTTP, T-carrier lines, and ATM. Although cable television (CATV) lines and fixed wireless are not a type of standard telephone line, they are very popular ways for the home user to connect to the Internet.
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