An incompressible fluid flows steadily through a pipe that has a change in diameter. The fluid speed at a location where the pipe diameter is 8.0 cm is 1.28 m/s. What is the fluid speed at a location where the diameter has narrowed to 4.0 cm?
A) 0.32 m/s
B) 0.64 m/s
C) 1.28 m/s
D) 2.56 m/s
E) 5.12 m/s
E
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a. True b. False Indicate whether the statement is true or false
The ________ Belt bodies orbit beyond Neptune, but like the planets stay close to the ecliptic plane and in fairly circular orbits
Fill in the blank(s) with correct word
A double-convex lens made of glass having a refractive index of 1.50 has a radius of magnitude 40 cm on the front side and one of magnitude 30 cm on the back side. What is the focal length of this lens?
A) 34 cm B) -240 cm C) 80 cm D) 11 cm E) -11 cm
The exchange of mediating photons can produce:
a. neither a repulsive nor an attractive force. b. either a repulsive or an attractive force. c. a repulsive force. d. an attractive force.