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Water is being pumped through a horizontal pipe that is 28.8 m long and 17.0 cm in diameter. A pump maintains a gauge pressure of 975 Pa at a large open tank at one end of the pipe. The other end of the pipe is open to the air. If this pipe is replaced by a second one of length 9 m and diameter 5.0 cm, what gauge pressure must the pump provide to give the same volume flow rate as for the first pipe?
A centrifuge in a medical laboratory rotates at an angular speed of 3450 rev/min. Find the constant angular acceleration of the centrifuge
A .5 kg block rests on a horizontal frictionless surface. It faces toward an inclined surface. How fast is the block going at that max height
A student at another university repeats the experiment you did in lab. What is the kinetic energy (in joules) of the target ball just after it is struck
The velocity of a boat with respect to the shore is 2 meters/second. The velocity of the water with respect to the shore is 1 meter/second. What is the distance traveled by boat after 3 minutes if the boat is traveling in the opposite direction of..
A 4.40-g lead bullet at 24.0°C is fired at a speed of 220 m/s into a large block of ice at 0°C, in which it becomes embedded. What quantity of ice melts
An electron ( mass = 9.11×10?31kg ) leaves one end of a TV picture tube with zero initial speed and travels in a straight line to the accelerating grid, If the accelerating force is constant, compute the acceleration of the electron
The space shuttle is in a 400km - high circular orbit. It needs to reach a 700 km -high circular orbit to catch the Hubble Space Telescope for repairs. how much energy is required to boost it to the new orbit
An plane and pilot have a total mass of 168 kg. While executing a banked curve of radius 20 m at a speed of 12 m/s
Compare the kinetic energy of car travelling. Compare the kinetic energy of an 900 kg car travelling at 30 m/s, and a 1,800 kg car at the same speed.
A potential difference is applied between the electrodes in a gas discharge tube. In 1.7 s, 3.2 1016 electrons, What is the current in the tube
a series rlc ac circuit has resistance r = 200 ohms, inductance l = 0.500 H, capacitance c = 4.00 uf, frequency 60.0 hz, What are the maximum voltages across the elements
A 1.0-cm-diameter pipe widens to 2.0 cm, then narrows to 0.5 cm. What is the volumetric flow rate through the pipe
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