The bus's position 
at time 
is
If we take the bus's rear's starting position to be the origin, then the position of the mate (?) is given by
The mate draws level with the rear of the bus when 
:
Drop the units to make things simpler:
So it would take 3 seconds for the mate to catch up to the bus.
Answer is A: lumbar vertebrae
Answer: ruling out rival hypothesis
Explanation:
To rule out rival hypothesis suggests that to exclude the possible explanation for a specific claim. This suggests that before confirming or believing something one has to ensure that other explanation for a specific claim has been disproved to become sure for a specific claim.
According to the given situation, the stress and illness relationship is required to be derived. The increased level of stress and illness is responsible for the decrease in immunity is ruled out by the fact that people due to stress indulge or engage in health damaging behaviors. This is responsible for illness.
Choosing for a career is one of the most important decision that one should make. There a number of factors that might affect this. Here are some:
Introversion vs. Extroversion = <span>Most people are close to the middle of the spectrum and will be most happy in a career that balances time alone with social interaction.
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Resources available = you can only readily use what you have in the moment so choosing where to go should be done wisely
Family = oftentimes, it is the family you are with that influences you what do you want to be and what you want to do
Environment= when you adapted fully to a certain environment you tend to choose that over anything else so it influences your decision
