I read it’s a unit of energy
The acceleration of the bike is 
Explanation:
We can solve this problem by using Newton's second law of motion, which states that:

where
F is the net force on an object
m is the mass of the object
a is its acceleration
For the bike in this problem, we have
F = 175 N is the net force
m = 50 kg is the mass
And solving for a, we find the acceleration:

Learn more about Newton's second law and acceleration:
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Our skelotns would have to change as, they require less pressure and so on. Even now we can only survive a certain time in space.
Answer:
Sample size determination
Explanation:
Sample size determination is the process of determining the number of observations to be used in a research hypothesis.
The larger the sample size, the more precise and accurate the results of the hypothesis will be. Bearing this in mind, the researcher will prefer to place a greater value on the research project with 10,000 participants.