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1. A 2-m-diameter pipe made of finished concrete lies on a slope of 1-m elevation change per 1000-m horizontal distance. Determine the flowrate when the pipe is half full.
2. By what percent is the flowrate reduced in the rectangular channel shown in Fig. P10.46 because of the addition of the thin center board? All surfaces are of the same material.
Four persons, each with a mass of 73.1 kilogram, are in a van with a mass of 1150 kilogram. An earthquake strikes. Find by what distance does the car undamaged suspension lifts the car body as the people get out
If we drop a small metal sphere into the water and watch its motion, it will quickly reach terminal velocity. what is the Reynold's number of this sphere
A bat can detect small objects such as an insect whose size is approximately equal to one wavelength of the sound the bat makes. what is the smallest insect a bat can detect
An 50.0 N box is pulled 25.0 m up a 35.0° incline by an applied force of 100.0 N that points upward, parallel to the incline. Calculate the change in the kinetic energy of the box
the human ear can detect a minimum intensity of lo 10-12 wm2. a student hears a sound with an intensity of l 1610-6
A copper wire with a cross sectional area of 3.00 mm^2 and a length of 2.00 m at 20.0 degrees C is connected to a 25.0 V battery, what is the resistance at 20.0 degrees C
Consider a two-dimensional spatial coordinate system S' whose coordinates (u,v) are defined by x = u + v, y = u - v in terms of the coordinates of a Cartesian coordinate system S. Suppose you are given a vector in S whose contravariant components ..
A .22 rifle bullet, travelingat 350 m/s, strikes a block of soft wood, which it penetrates to adepth of 0.130m. How much time is required for the bullet to stop
Assuming that the screen is sufficiently bright, at what distance can you no longer resolve two pixels on diagonally opposite corners of the screen
Decide the x-component of the electric field Ex at point (x,0). That is, calculate E near one end of a long wire, in the plane perpendicular to the wire. Decide the y-components of the electric field Ey at point (x,0). Suppose x>0.
Determine the enthalpy change and internal energy change of ammonia in J/mole, as it is heated from 350 K to 600 K, using the ideal gas heat capacity given by the Shomate Equation.
A copper vat is 12 m long at room temperature (20 degrees Celsius). How much longer is it as it contains boiling water at 1 atm pressure.
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