Heroin, Oxycodone, Oxymorphone, Hydromorphone.
These are some.
Answer: Bar Graph
Explanation: I had this question on my quiz, and wanted to just share the answer with you. It is without a doubt one hundred percent correct.
The answer is A, friction.
Friction is the force that resists movement, and that's why oil is used as a lubricant and why ball bearings are used for machines that need to move with very little friction(i.e. bike wheels, roller skates, fidget spinners)
Answer B is too vague
C will probably reduce efficiency greatly, but not specifically in a way that turns work into thermal energy.
D is the same as C, except that it places the blame on the person using the machine, not the machine itself.
Hope I helped clear it up for you :)
