Answer: A: The smoother the ramp surface, the greater the car's speed.
Explanation: I did the USA test prep
<span>Topic & Statement (ask a question)
Conduct Research
Form a Hypothesis
Conduct an Experiment
Collect Data
Analyze Results
Form Conclusions
Report & Present</span>
Answer:
a) polytetrafluorethylene
b) polyethylene terepthalate
c) Nickel
d) Polytetrafluroethylene
e) Aluminum
Explanation:
a) polytetrafluorethylene can be used to make laboratory bottles that can contain nitric acids ( dilute ones ) because of its resistance to either acidic or basic solution
b) polyethylene terepthalate can be used because it is relatively cheaper, also Benzene doesn't exhibit corrosion effect
c) Nickel can be used to produce pipes that transport hot alkaline solutions
d) Polytetrafluroethylene can be used for underground water tanks
e) Aluminum is used because it is light weighted and exhibits corrosion resistivity to climate change
That’s what I think you mean
