As stream velocity decreases which factor will increase?
- print Print
- list Cite
Expert Answers
calendarEducator since 2016
write79 answers
starTop subjects are Science, Literature, and Social Sciences
To understand this question, it's important to take a look at the definition of velocity. Velocity is a measurement of the rate of change of speed and direction of an object (in this case, a stream). Velocity is a vector quantity, but this question asks you to consider the absolute value (scalar magnitude) of the velocity vector, which is speed.
The formula for velocity is:
v=d/t
where
v = velocity (sometimes denoted with r for rate)
d = distance
t = time
However, a stream isn't moving in one straight line at a single rate of movement. On top of that, additional influences such as gravity play a huge role in calculating stream velocity. To answer this question, you will need to consider Bernoulli's Equation:
1/2ρv^2 + ρgh + p = constant
where
ρ(rho) = density
v = velocity (of the stream)
g = acceleration due to gravity
h = elevation
p = pressure
From this, you can see that a decrease in velocity will signify an increase in density and/or pressure. Of course, you can also imagine that a decrease in velocity is an effect of a decrease in elevation (gravitational acceleration from potential > kinetic energy).
Please let me know if you have follow up questions and/or if any of this explanation is unclear. I'm happy to clarify and/or expand on this response.
Related Questions
- Why does the surface area to volume ratio increase as the cell size decreases?
- 1 Educator Answer
- when will the average velocity be equal to instantaneous velocity?
- 1 Educator Answer
- If the mass of the bob of a pendulum is increased by a factor of 3, the period of the pendulum...
- 1 Educator Answer
- What happens to the number of electrons in an atom as the atomic number on the Periodic Table...
- 1 Educator Answer
- Within a group of elements, as the atomic number increases, the atomic radius does what. (ie:...
- 1 Educator Answer