Answer:
Data from a cross-sectional study or survey might need to incorporate weights or design effects in the analysis.The analysis plan should specify which variables are most
Explanation:
Answer:
Explanation:
Assuming that cars 4 and 5 have same mass so that the momentum
P=mv where m is mass and v is velocity hence
Momentum=0+2mv+3mv=5mv
The final mass is 2m+3m=5m
From aw of conservation of momentum
hence 
Therefore, the speed is
Answer:
advantage : 1) produce no polluting gases .
2)doesn't contribute to global warming .
disadvantage: 1)waste is radioactive and safe disposal is very difficult and expensive.
2)local thermal pollution from east water affects marine life
Probably the changes in environment....
The answer is C, since the velocity is not changing then neither is the acceleration
