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Following the stream cross section (ft2) and the stream velocity (ft/sec) allows us to calculate the stream flow (ft3/sec). The watershed runoff during a storm is 3.5 ft. high and flows in 18 ft. wide channel. The velocity is measured at 1.2 feet per second (fps). What is the flow rate of the water in cubic feet per second?
The intake in the figure has cross-sectional area of 0.72 m2 and water flow at 0.49 m/s. What is the pressure difference between inlet and outlet
Your eye (diameter 2.5 cm) is able to focus the image of a tree on your retina. The tree is 24 m tall and 85 m away. What is the size of the image of the tree on your retina? (Be careful about the sign of the image size.) Show your work.
A beam of light is incident from air onto a flat piece ofpolystyrene at an angle of 52^{\circ} relative to a normal to the surface. What angle does the refracted ray make withthe plane of the surface?
An initially stationary 2.0 kg object accelerates horizontally and uniformly to a speed of 20 m/s in 1.9 s. (a) In that 1.9 s interval, how much work is completed on the object by the force accelerating it.
a chef upon awaking one morning to find his stove out of order decides to boil the water for his wifes coffee by
A woman starts to swim directly across a 7.4-km-wide river. Her speed with respect to the water is 1.3 m/s. How much time does it take her to cross the river
a particular material has a dielectric constant of 1.7 and a dielectric strength of 14.0 mvm. if this material is used
A horizontal platform in the shape of a circular disk rotates one frictionless bearing about a vertical axle during the center of the disk. The platform has a radius of 4.34 m and a rotational inertia of 100 kg·m 2 about the axis of rotation. A 68...
the lead female character in the movie diamonds are forever is standing at the edge of an offshore oil rig. as she
The force shown in the attached figure is the net eastward force acting on a ball. The force starts rising at t = 0.012 s, falls back to zero at t = 0.062 s, Find the area of a nearly equally sized triangle
A double-slit interference pattern has a fringe (a “fringe” is an interference maximum) spacing of 4.0 mm. How far from the central maximum is the first position at which the intensity is equal to I1, the intensity due to each individual slit? In thi..
A string 1.5 meter long with a mass of 2.5 gram is stretched between two fixed points with a tension of 99 Newton. Obtain the frequency of the fundamental on this string
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