Fluid flows at 2.0 m/s through a pipe of diameter 3.0 cm. What is the volume flow rate of the fluid?
A) 1.4 10-3 m3/s
B) 5.7 10-3 m3/s
C) 14 m3/s
D) 57 m3/s
Question 2
To determine the location of the center of mass (or center of gravity) of a car, the car is driven over a scale on a horizontal floor.
When the front wheels are over the scale, the weight recorded by the scale is 5800 N, and when the rear wheels are over the scale, the scale reads 6500 N. The distance between the front and rear wheels is measured to be 3.20 m. How far behind the front wheels is the center of mass located? A) 0.845 m
B) 1.50 m
C) 1.59 m
D) 1.69 m
E) 1.72 m
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