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Find the velocity diagrams at the mean, hub and tip diameters of an axial flow water pump based upon the free-vortex design. The mean diameter velocity diagram has an axial inlet with a flow coefficient of 0.3 and a work coefficient if -0.208. The tip diameter to mean diameter and the hub diameter to mean diameter ratios are 1.25 and 0.75 respectively. The blade velocity at the mean diameter is 60m/s .
find angular acceleration and time needed for a spinning ball that has initial angular velocity of 5.5 rads to
Suppose that charges on a dipole antenna oscillate slowly at a rate of 1 cycle/s, and the antenna radiates electromagnetic waves in a region of space. What is the magnitude of the Poynting vector
an air column in a glass tube is open at one end and closed at the other by a movable piston. the air in the tube is
Find the net torque about the axis of a bar that has Force 1 directed to left of axis with a r = 25 centimeter and at an angle of 40o to horizontal
A person travels by car from one city to another with dissimilar constant speeds between pairs of cities. She drives for 30mins at 80 km/h, 12 min at 100 km/h, and 45 min at 40 km/h and spends 15 min eating lunch and buying gas.
A car speeds along the curved exit ramp of a freeway. The radius ofthe curve is 86 m. A 68 kg passenger holds the arm rest of a car door witha 220 N force to keep from sliding across the front seat of thecar.
An ion having charge +6e is traveling horizontally to the left at 8.30 km/s when it enters a magnetic field that is perpendicular to its velocity and deflects it downward with an initial magnetic force of 7.04 x 1015 Newton
You're viewing a pair of green (wavelength=550nm) butterflies on a tree branch. What is Rayleigh's minimum angle for resolution
A beam of light traveling in air is incident on a transparent plastic at an angle of incidence of 50o. The angle of refraction is 35o. What is the index of refraction of the plastic
A solid conducting sphere with radius that carries positive charge is concentric with a very thin insulating shell of radius 2 that also carries charge . The charge is distributed uniformly over the insulating shell. Q: Find the magnitude of the elec..
A 0.245 kg ball is thrown straight up from 2.20 m above the ground. Calculate the total work done by the force of gravity during that time
An automobile has a vertical radio antenna 1.10 m long. The automobile travels at 26.0 km/h on a horizontal road where Earth's magnetic field is 50.0 µT, Calculate the magnitude of this induced emf
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