Consideing the definition of velocity, the total velocity is 43.75 miles/h.
<h3>Definition of velocity</h3>Velocity is a physical magnitude that relates the displacement of an object, the time it takes to make this change in position and direction.
The velocity can be defined as the amount of space traveled per unit of time with which a body moves, considering the direction, and can be calculated using the expression:
velocity= distance traveled÷ time
Velocity has units of .
In this case, you know:
Replacing in the definition of velocity:
velocity= 350 miles÷ 8 h
Solving:
<u><em>velocity= 43.75 miles/h</em></u>
Finally, the total velocity is 43.75 miles/h.
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Answer:
Explanation:
To solve this problem, we need to obtain the number of moles of the solute we desired to prepare;
Number of moles = molarity x volume
Parameters given;
volume of solution = 500mL = 0.5L
molarity of solution = 0.5M
Number of moles = 0.5 x 0.5 = 0.25moles
Now to know the volume stock to take;
Volume of stock =
molarity of stock = 4M
volume = = 0.0625L or 62.5mL