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Water at a pressure of3.8atm at street level flows into an office building at a speed of0.70m/s through a pipe4.4cm in diameter. The pipes taper down to2.6cm in diameter by the top floor,20m above (in figure). Calculate the flow velocity and the pressure in such a pipe on the top floor. Ignore viscosity. Pressures are gauge pressures.
flow velocity
m/s
pressure
atm
On a 7.2 m length of string, you count 5 crests and 4 troughs. What is the wavelength of the waves on the string
Does the level of social responsibility exhibited by Starbucks have any effect on how other coffee retailers are viewed?
Three sheets of plastic have unknown indices of refraction. Sheet 1 is placed on top of sheet 2, and a laser beam is directed onto the sheets from above, what is the expected angle of refraction in sheet 3
As a crude model for lightning, consider the ground to be one plate of a parallel-plate capacitor and the cloud to be the other plate, What is the capacitance of the system
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But rather caused by a star collapsing upon itself causing not a huge bang as once thought, other than rather a wimper, later emitting Hawking Radiation.
A student moves a box of books by attaching a rope to the box and pulling with a force of 90.0 N at an angle of 30.0 degrees. Find the acceleration of the box
Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons. What is the net charge of all these electrons
An interference experimental setup consists of two slits that are separated by 2 micro meter. What is the angle of diffraction for the second order dark fringe
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