Answer:
(b) Vl/v
Explanation:
The dimension for V is LT-1
The dimension for Length is L
The dimension for time is T
The fluid property v has a dimension of L2T-1, which is equal to square of the length divided by time.
for (a) Vlv
LT-1×L× L2T-1
= L^4T^-2
(b) Vl/v
LT^-1 ×L/ L^2 T^-1
=1. ; this is dimensionless.
(c)V2v
(LT^-1)^2 × L^2 T^-1
= L^4 T^-3
(d) V/(lv)
LT^-1/(LL^2 T^-1)
= L^-2
Answer:
The most precise is 0.0034 m ⇒ 1st answer
Explanation:
<em>Lets revise the meaning of precise</em>
Precision is referred as the closeness of two measurements to one
another.
Highest number with significant digit is the most precise
Ex: <em>Highest significant </em>of optical instrument is the Wavelength of visible (red)
light = 0.00006 cm
Hence the <em><u>most precise</u></em> device for measuring length is the given optical
instrument
The difference between accuracy and precise
<em>Accuracy</em> is how close a value is to its true value
<em>Precision</em> is how repeatable a measurement is
We have three numbers
0.0034 m, 45.6 m, and 1234 m
The least precise is 1234 m
The most precise is 0.0034 m
Answer:
C) Pressure will compress a gas, reducing its volume and giving it a greater density and concentration of particles.
Explanation:
At constant temperature, pressure and volume are inversely related.
P V = constant
As the pressure increases, the gas compresses, the particles come closer reducing the volume of gas.
As we know, with decrease in volume, density increases.
Thus, the pressure of a gas is directly related to concentration of particles. Increase in pressure causes increase in concentration of the particles.
Answer: Systems thinking is a holistic approach to analysis that focuses on the way that a system's constituent parts interrelate and how systems work over time and within the context of larger systems.
For three moles of an ideal gas are taken around the eye, the total work for the cycle is mathematically given as
Wt=1945.475J
<h3>What is the total work F for the cycle.(R=8.31J/molK)?</h3>
Generally, the equation for work is mathematically given as
Wt=wac+Wc+Wba
Therefore
Wac=Pa(Vc-Va)=nR(Tc-Ta)
Wac=3(8.314*192)
Wac=4788.864J
Wcb=P1v1-p2v2/v-1
Wcb-3*8.34*108/0.4
Wcb=-6734.34J
Wab=0
In conclusion,
Wt=wac+Wc+Wba
Wt=4788.864J+0+(-6734.34J)
Wt=+1945.475J
Read more about work
brainly.com/question/756198
#SPJ1
