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An incompressible fluid is flowing through a pipe with a constriction. The pipe is on an incline with an angle of 30.0 degrees. The narrow section is 10.0m from the wide section and the narrow section is lower than the wide section. The velocity of the fluid in the wide section of the pipe is 4.00 m/s. The diameter of the wide section is 12.00 cm and the diameter of the narrow section is 9.00 cm. The pressure of the fluid in the wide section is 250 k Pa. What is the pressure in the narrow section of the pipe?
A microwave oven operates at 2.4 GHz with an intensity inside the oven of 2500 W/m^2. What is the amplitude of the oscillating electric field? What is the amplitude of the oscillating magnetic field?
When an electron undergoes a transition from a higher to lower state in singly ionized helium, how will the energy of the emitted photon compare with the analogous transition in hydrogen?
A 340-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 28° with the horizontal. What is the angular speed of the sphere
You are a member of a production crew filming a nature explorer in the Rocky Mountains. Calculate the time the explorer spends in the water if the river is 90.7 feet wide
The trainer releases the ball at the horizontal distance of 4.72m away and the vertical distance of 4.61m above the water. At what height does the dolphin catch the ball
An unhappy rodent of mass 0.289kg , moving on the end of a spring with force constant 2.52N/m , is acted on by a damping force Fx=?b?vx. If the constant b has the value 0.894kg/s , what is the frequency of oscillation of the mouse
Physicians use electroencephalograms (EEGs) to study electrical oscillations in the human brain. So-called beta oscillations, whose enhancement has been linked to alcoholism, have frequencies from 12 to 30 Hz . What's the corresponding range in perio..
A small block with mass 0.0475kg slides in a vertical circle of radius 0.0710m on the inside of a circular track. What is the magnitude of the normal force that the track exerts on the block when it is at the top of its path
q1. chromium is produced by reacting its oxide with aluminium. if 354 g of cr2o3 and 158 g of al react to form 204 g of
two small beads having positive charges 3q and q are fixed at the opposite ends of a horizontal, insulating rod, extending from the origin to the point x=d. a third small chatged bead is free to slide on the rod. at what position is the third bead..
A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. He is closer to one cliff than the other. find the distance (in m) between the cliffs
A human hair is placed directly in front of the opening of a laser pointer. The light has a wavelength of 647.8 nm. Determine the approximate thickness of the hair
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