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The smooth, concrete-lined, symmetrical channel shown in Video V10.7 and Fig. P10.88 carries water from the silt-laden Colorado River. If the velocity must be 4.0 ft/s to prevent the silt from settling out (and eventually clogging the channel), determine the minimum slope needed.
A railroad car of mass 40900 kg moving at 3.35m/s collides and couples with two railroad cars,each of the same mass as the single car and moving in the same direction at 1.53m/s. what is the speed of three cars after the collision.
A certain mass oscillates without friction on the end of a horizontal spring. At time t= 1.20 s, the mass is at position x= 0.120m (measured from the equilibrium location), has velocity of v= 14.5m/s, and is accelerating at a = -98.0m/s^2
A fire hose 4 cm in diameter is capable of spraying water at a velocity of 20 m/s. For a continuous horizontal flow of water, what horizontal force should a fireman exert on the hose
A single-turn plane loop of wire with a corss-sectional area 200cm^2 is perpendicular to a magnetic field that increases uniformly from 0.200T to 2.800T in 2.20 seconds. What is the magnitude of the induced current if the resistance of the coil is 8...
A microwave oven can heat 205 of water from 20.0 to 90.0 in 2.00 . If the wavelength of the microwaves is = 15.2 , how many photons were absorbed by the water?
The acceleration of a bus is given by ax(t)=αt, where α = 1.28m/s3 is a constant. If the bus's position at time t1 = 1.13s is 5.92m, what is its position at time t2 = 2.02s
One of the loudest sounds in recent history was that made by the explosion of Krakatoa on August 26-27, what was the decibel level on Rodriguez Island
A uniform sphere and a uniform cylinder with the same mass and radius roll at the same velocity side by side on a level surface without slipping. What will be the percentage difference of the heights
hree thin rods are formed into a right triangle. Each of the sides has mass M and length L, and the hypotenuse is of mass 2 M. find the center of mass of the triangle
662 keV photons are emitted as a result of the decay of 137Cs. These photons undergo Compton scattering. What is the minimum energy of a Compton scattered photon? What is the maximum Compton electron energy?
How does the composition of varying types of matter affect the electromagnetic radiations throughout the spectrum? How different do you think medicine would be today without medical imaging? Why do we need units of measure in our daily lives
A monatomic ideal gas (? = 5/3) is contained within a perfectly insulated cylinder that is fitted with a movable piston. The initial pressure of the gas is 1.82 × 105 Pa. The piston is pushed so as to compress the gas, with the result that the Kelvin..
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