If the angle is either 0 or 180, that means that there is either negative or positive work, so A and D are not correct.
If the angle is 45, then there is still some work involved.
The only option where there is no work done by a force is B. when the angle is between the force and displacement is 90.
Answer:
it is probably acrylic or latex
Explanation:
Feo + 2H = H2O + Fe + 2 + CIO4-
this is ur answer. .
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D. All of the above. Developing medicine, analyzing compounds and producing new product such as plastic all have to deal with chemistry.
