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A mixture of water (density 1000 kg/m3) and oil (density 800 kg/m3) is flowing through a tube of diameter 2 cm with a velocity of 4 m/s. The mass flow rate is measured to be 1.068 kg/s. Determine (a) the density of the liquid mixture, (b) the percentage of oil in the mixture by mass. Assume liquids to be incompressible.
A solenoid with 500 tunrs per cm, length 18cm, radius of r=10mm and a resistance of R=20 . The coil carries a current i=2A . What is the flux, through the coil ? What is the self-inductance L of the coil? What is the rate of change of the current in ..
An ambulance siren has a frequency of 440 Hz as heard by the driver. What frequency is heard by a pedestrian as the ambulance approaches him at a speed of 32.0 m/s
an object travels in a circle of radius 2.0 m. at time t 0 the object has a velocity of 10 ms and it slows uniformly
The two surfaces of a plastic converging lens have equal radii of curvature of 24.5cm, determine the index of refraction of the plastic
carnival merry-go-round rotates about a vertical axis at a constant rate, How far is the man from the center of the merry-go-round
A device used in radiation therapy for cancer contains 0.29 g of cobalt-60 (59.933 819 u). Determine the activity (in Bq) of the radioactive material
A charge of -8.8 µC is traveling at a speed of 7.3*106 m/s in a region of space where thereis a magnetic field. The angle between the velocity of the chargeand the field is 52°. A force ofmagnitude 5.2*10-3 N acts on the charge. What is the magnitu..
At a certain distance from the center of the Earth, a 4.5- object has a weight of 4.0 , by what factor does its weight change
Starting from its nest, an eagle flies at constant speed for 3.2 min due east, then 4.6 min due north. How long is the eagle in the air
Each of the three helicopter rotor blades shown in Fig. 10-67 is5.20 m long and has a mass of 153 kg. The rotor is rotating at 202rev/min. (a) What is the rotational inertia of the rotor assembly about the axis of rotation
Water is flowing in a circular pipe with varyingcross-sectional area, and at all points the water completely fillsthe pipe. What is the radius of the pipe at this point
A car moving at 15 m/s skids to a stop in 20 m. If the cartravels at 45m/s , how far will skid, assuming the same constantbraking force? Calculate the kinetic energy of the earth as it makes onrevolution around the sun.
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