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A storage tank has a diameter of 80 ft, a height of 25 feet, and contains oil to a height of 15 ft. The suction pumps, whichcan handle 15, 000 bbl/d are started, but the safety valves areclogged and a vacuum is drawn in the tank. The roof is flatand rated to withstand 1.0 oz/sq in. before collapsing. Thebarometric pressure is 30 in Hg. How long will it take thetank to collapse? What is the total force on the roof atcollapse? How would more oil in the tank have affected the collapse time?
Calculate momenta before collision of the objects with masses m1=10g and m2=20g, moving with speeds v1=2m/s and v2=7m/s
q. having completed the basics of the memory system we turn not to issues involving memory. one important issue is the
A 3.8uC charge is at the center of a cube 7.0cm on each side. What is the electric flux through one face of the cube
What is the minimum energy of a 2.7 g Ping-Pong ball in a 10-cm-long box, What speed corresponds to this kinetic energy
An intergalactic rock star bangs his drum every 1.70 s. How fast is the rock star moving relative to the earth
A cube of 54.4 cm on a side is placed in a uniform electric field, E, of 8010.0 N/C with four of its faces parallel to E and two of its faces perpendicular to E. find the electric flux (&PhiE) through the two penpendicular faces
A series AC circuit contains a 159 ? resistor, a 360 mH inductor, a 2.4 µF capacitor, and a generator with maximum voltage of 240 V operating at 50 Hz. Calculate the inductive reactance
A 110 g copper calorimeter cup contains 190 cm3 of water and 45 g of ice, all in thermal equilibrium. find the mass of water before the hot iron is put into the cup
The drawing shows an equilateral triangle, each side of which has a length of 1.59 cm. Point charges are fixed to each corner, Determine the charge qA and q
An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.210 rev/s . The magnitude of the angular acceleration is 0.881rev/s . Both the the angular velocity and angular accleration are directed clockwi..
A car is traveling with a constant speed 80 miles per hour a road that makes half a circle. What is the velocity of the car
A 4.0cm -tall candle flame is 2.0m from a wall. You happen to have a lens with a focal length of 42cm. what is the orientation of the image
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