I believe it’s the Distance Traveled that is the dependent variable, because the smooth wood, rough wood and number of students are all fixed. I’m not sure though! I hope this helps.
Answer:
Forgive me if im wrong but i am pretty sure the answer is C
Explanation:
I would think the answer would be C. Based off of what I've learned and heard. Sorry if it's not the correct answer though.
Answer:
Electric engines have efficiencies of roughly 90% whilst combustion engines about 10% to 30%. This is because combustion engines emit much more heat, which is always energy that is not used as work, and thus increases inefficiency.
Explanation:
