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1. The flow rate Q of water in an open channel is assumed to depend on the height h of the water and width w and slope S of the channel, the wall roughness height e, and gravity g. Relate the flow rate to the other variables. 2. The lift FL on an airfoil is related to its velocity V, its length L, its chord length c, its angle of attack a, and the density r of the air. Viscous effects are assumed negligible. Relate the lift to the other variables.
Two blocks, Block1 (larger block), and Block2=3.0kg are pulled across a horizontal level, friction free surface by a horizontal force, F=20N. What is the mass of the larger block
radium ra decays to radon rn which decays to polonium. if at t 0 a sample is pure radium how much polonium does it
The temperature of the air in a resonator is 15°C, when a tuning fork vibrates at one end, the spacing between tow successive resonances is found to be 50 cm. find the frequency of the tuning fork.
X-ray pulses from Cygnus X-1,a celestial x- ray source, have been recorded during high- altituderocket flights. The signals can be interpreted as originating whena blob of ion- ized matter orbits a black hole with a period of5.25 ms. I
A thin rod of length 0.75 meter and mass 0.46 kilogram is suspended freely from one end. Evaluate the rod kinetic energy at its lowest position
A charge of 6.0 mC is placed at each corner of a square 0.100mon each side. Determine the magnitude and direction of the force on each charge
A ball bearing is dropped from rest at a point A. At the instant it passes a mark 4.5 m below A, How far does the second bearing fall in that time
A long horizontal wire carries 24.0 A of current due north. What is the net magnetic field 24.0 cm due west of the wire, What is the magnitude of the net magnetic field 24.0cm due west of the wire
Calculate the Energy in kW-h necessary to place a 1.0 kilogram object in low Earth orbit. In Low earth orbit, the height of the object above the surface of the earth is much smaller than the radius of the Earth's radius
calculate the diameter of a disk 10 centimeners thick required to store 1 megajoule of energy if this disk is rotating
An X-ray beam of wavelength 0.01nm strikes a target containing free electrons. determine The change in wavelength of the scattered x-ray
A proton moving at 106 m/s suddenly enters a repelling electric field of magnitude 104 N/C. How far does the proton travel before stopping
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