Answer:
agear lever or agear stick is the lever that you use to change gear in acar or other vehicle
ANSWER:
What effect does a catalyst have on a system in equilibrium?
The system is unaffected.
~batmans wife dun dun dun....
ANSWER: 1.6N (forth option)
EXPLANATION:
E= Force x displacement
69=F(42)
69/42 = F
F=1.64 N
Answer : 1.6N
Another name for these two words is "constant" and you want to have a "constant", because you want something to compare your experimental group to, to see whether data had changed or not. So you have placebos or a double- blind to compare your experimental group to it and also so you know you don't have a bias or anything in the study.