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Water is supplied to an office building 41.5 m high through a pipe at ground level.
a) Find the minimum pressure in the supplypipe so that water can reach the top floor of the building.b) Suppose the pressure in the supply pipe is designed so that water can flow out through a much smaller pipe on the top floor ata speed of 4.85 m/s. Find the pressure inthe larger pipe on the ground floor.
A certain loudspeaker system emits sound isotropically with a frequency of 2270 Hz and an intensity of 1.05 mW/m2 at a distance of 5.26 m. Assume that there are no reflections
On a clear day the electric field in the atmosphere near the earth's surface is 100 N/C, directed vertically downward. What is the potential at the top of Pike's Peak, 14,110 ft above sea level
Two C1 = 3.7 μF, C2 = 18.7 μF are charged individually to V1 = 14.2 V, V2 = 7.0 V. Calculate the final potential difference across the plates of the capacitors once they are connected
A gas is compressed at a constant pressure of 0.800 atm from9.00 L to 2.00 L. In the process,400 J of energy leaves the gas by heat. What would be the change in its internal energy
A box of mass 12.0 kg is sitting on the floor of an elevator which is accelerating upwards at 5.1 m/s2. If the coefficient of static friction between the box and the floor if 0.30, what is the minimum horizontal force needed to just start moving the ..
A flask is filled with 1.50 L (L = liter) of a liquid at 98.0 °C. What is the coefficient of volume expansion of the liquid
A soccer ball is kicked with an initial speed of 9.8 m/s. After 0.200 s it is at its highest point. What was its initial direction of motion
A 50 g mass is attached to a massless spring and allowed to oscillate around an equilibrium according to: y(t) = 1.2*sin( 3.1415*t), What is the maximum Kinetic Energy of the mass
Which of the folllowing are traveling faster than their terminal speed? Choose all that apply. A shooting star (meteor)A basketball at the moment it leaves theshooter's hands A penny, 16s after it has been dropped from the top of the Sears TowerA ..
The plane 2x+3y+5z = 0 cuts the orthogonal set of axes (the system of x,y and z axis). What is the Miller Index of this plane
Judy (mass 45.0 kg), standing on slippery ice, catches her leaping dog, Use the conservation of momentum to find the speed of Judy and her dog after the catch
The primary coil of a transformer has N1 = 1.50 102 turns, and its secondary coil has N2 = 5.00 101 turns. what rms voltage is developed across the secondary coil
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