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A 7.5 cm diameter horizontal pipe gradually narrows to 4.5 cm. When water flows during this pipe at a certain rate, the measure pressure in these two sections is 33.0 kPa and 26.0 kPa, respectively. What is the volume rate of flow?
A uniform steel beam has a mass of 2070 kg. On it is resting half of an identical beam, What are the vertical support forces
A physical pendulum is made by drilling a hole through a uniform wooden disk of radius R a distance (alpha)*R from the disk's center. What must alpha be to miniumze the disk's period of oscillation
One method for measuring the speed of sound uses standing waves. A cylindrical tube is open at both ends, and one end admits sound from a tuning fork. What is the speed of sound in the gas in the tube
the average person passes out at an acceleration of 7g that is seven times the gravitational acceleration on earth.
A 170, 35.0 cm-diameter turntables rotate on frictionless bearings at 53.0. A 20.0 block sits at the center of turntable. A compressed spring shoots the block completely outward along a frictionless groove in the surface of the turntable.
A stone is thrown horizontally at a speed of 4.9 m/s from the top of a cliff 89.5 m high, how long does it take the stone to reach the bottom of the cliff.
A car started frm rest and accelerated for 5s at 6.00m/s2.Then it stayed at a constant speed for 20 s. It next slowed down at 3m/s2 until it came to a stop? how far did it travel during the first 5 s.
What diameter needle should be utilized to inject a volume of 500cm^3 of a solution into a patient in 30 min? Suppose the length of the needle is 2.5cm and the solution is elevated 1.0m above the point of injection. Also suppose the density and visco..
near the surface of the earth there is an electric field of about 150 vm which points downward. two identical balls
A square copper plate has a circular hole in its center. Each side of the plate is 23.52 cm, and the radius of the circular hole is 7.827 cm
An ambulance has a siren of frequency 700 Hz. If the ambulance is moving at a speed of 60 miles per hour, what will be the frequency heard by a man standing on the sidewalk as the ambulance approaches him
an astronomer is using a telescope to observe two distant stars. the stars are marginally resolved when she looks at
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