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A water tower is a familiar sight in many towns. The purpose of such a tower is to provide storage capacity and to provide enough pressure in the pipes that deliver the water to customers. The drawing shows a spherical reservoir that contains 6.61 x105 kg of water when full. The reservoir is vented to the atmosphere at the top. For a full reservoir, find the measure pressure that the water has at the faucet in(a) house A and (b) house B. Ignore the diameter of the delivery pipes.
during 9.75 seconds a motorcyclist changes his velocity from v1x -30.3 ms and v1y 13.1 ms to v2x -26.1 ms and v2y
If the inside of the vessel is maintained at atmospheric pressure 1.013 × 105 Pa, what is the net force on a porthole of diameter 16.9 cm
A 0.88 kg ball is moving horizontally with a speed of 4.9 m/s when it strikes a vertical wall. find the magnitude of the change in linear momentum of the ball
A fly wheel turns through 30 rev(1 rev=2pie rad) as its slows from an angular speed of 6 rad/s to a stop. Assuming a constant angular acceleration, find the time for it to come to rest
A scale sits atop a desk. On the scale is a cylindricalcontainer (mass 100g) filled with 200cm3 (200g) of water. How many grams does the scale read
Calculate the force of gravity on a spacecraft 25600 km (4 earth radii) above the Earth's surface if its mass is 1500 kg
An ideal spring of outstretched length 0.20 m is placed horizontally on a frictionless table as shown above. Calculate the maximum speed attained the 8 kg block
A molecule of DNA (deoxyribonucleic acid) is 2.05 µm long. The ends of the molecule become singly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 0.88% upon becoming charged. Determine th..
What vertical height does block reach above its starting point. What speed does it have when it slides back down to its starting point.
Suppose you look through a 3.3 mm thick window comprised of a material whose refractive index is 1.63. Find by what time interval is the light you see delayed by having to go through glass instead of air
A block is projected up a frictionless inclined plane with initial speed v0 = 1.44 m/s. The angle of incline is ? = 45.8°. How long does it take to get there
An airplane wishes to fly from new york to ottawa. from new york, ottawa is located 780km West23degreesNorth. there is a wind blowing from a bearing of 310 degrees and if the plane flies at 890km/h, what bearing should the pilot steer to fly direc..
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