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A village maintains a large tank with an open top, containing water for emergencies. The water can drain from the tank through a hose of diameter 6.65 cm. The hose ends with a nozzle of diameter 2.40 cm. A rubber stopper is inserted into the nozzle. The water level in the tank is kept 7.50 m above the nozzle.
(a) Calculate the friction force exerted by the nozzle on the stopper.
(b) The stopper is removed. What mass of water flows from the nozzle in 2.00 h?
(c) Calculate the gauge pressure of the flowing water in the hose just behind the nozzle.
A transformer has 100 turns in its primary windings and 500 turns in its secondary winding. calculate the secondary voltage and current
a solid sphere of radius 49 cm has a total pos- itive charge of 33.1 oc uniformly distributed throughout its volume.
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A beam of light is incident from air on the surface of a liquid. If the angle of incidence is 29.5°, find the critical angle for the liquid when surrounded by air
consider a solid sphere of radius 4 cm at a temperature of 19 degrees celsius. suppose the sphere is completely
Use Ampere's Law to find the magnetic field due to an infinitely long wire of radius R carrying a current I. Find the magnetic field both inside and outside the wire
A tuning fork has a frequency of 128 Hz, what is the period of the tuning fork
The same train ordinarily decelerates at a rate of 1.95 m/s2. How long does it take to come to a stop from its top speed
a diverging lens has a focal length of 50 a source of light is placed 100 cm in front of lens in front of the lens. where will the image be formed
A particle has initial velocity 5 m/s due east and acceleration 2 m/s^2 due west. Find the distance traveled during 3rd second of the motion.
A growing plant creates a highly complex and organized structure out of simple materials such as air, water, and trace minerals. what is the plant's ultimate source of energy
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