which force will decrease if the surface of a ramp is made smoother. gravity, magnetism, friction, or electricity
2 answers:
IT would be friction because the surface would not have any friction on it
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Answer: nuclear energy
Explanation: nuclear energy
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ans a: wild cats
ans b:yes
If it is average speed per hour, then you just have to divide 3.5 into 60
60/3.5 = 17.143 so around 17km/h
Answer:
qn is wrong pe= mgh but there is no height