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
A
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__________refer to rare occasions when Venus can be seen as a tiny dot directly between Earth and the Sun
A) Light pillars of Venus B) Transits of Venus C) Solar phenomena of Venus D) Meteors of Venus
Relative Velocity: A boat, whose speed in still water is 8.0 m/s, crosses a river with a current of 6.0 m/s. If the boat heads perpendicular to the current, what is the speed of the boat relative to an observer standing on the shore as it crosses the river?
A. 5.3 m/s B. 6.0 m/s C. 8.0 m/s D. 10.0 m/s
The star Rho Cancri B has about the same mass as our Sun, and the planet discovered around it orbits somewhat closer than Mercury orbits our Sun. The mass of the planet is estimated to be 1.1 times the mass of Jupiter
Why, according to our theory of solar system formation, is it surprising to find a planet the size of Rho Cancri B's planet orbiting at this distance?
In order to lift a bucket of concrete, you must pull up harder on the bucket than the bucket pulls down on you
A) True B) False