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1. Water flows through a horizontal pipe at a rate of 38 gpm (1 ft3 = 7.48 gal). What is the velocity in the larger opening of the pipe that reduces from 5.8 to 2.3 inches in diameter? Larger Pipe Velocity = 2.Gasoline flows through a 1.1 inch diameter hose at an average velocity of 4 ft/s. What is the rate of flow in gallons per minute? (1 ft3 = 7.48 gal) How much time is required to fill a 19 gallon tank? Flow Rate = Time to fill = 3.Water is flowing at 6 m/s through a 4 cm pipe and is connected to a 2.1 cm pipe. What is the velocity in the smaller pipe? Small Pipe Velocity = 4.What must be the diameter of a hose if it is to deliver 8 liters of oil in 1.5 minutes with an exit velocity of 6 m/s? Pipe Diameter = 5.The water flow rate for a particular sprinkler is 24 gpm. The water must be projected at least 20 feet in radius. The sprinkler is mounted 11 feet above the ground and is aimed at an angle of 28 degrees above the horiztonal. With what velocity must the water leave the sprinkler? What diameter (inches) should the opening be to achieve this velocity? Water Velocity = Diameter Opening = 6.Human blood of density 1050 kg/m3 is held a distance of 40 cm above an arm of a patient to who it is being administered. How much higher is the pressure at this position that it would be if it were held at the same level as the arm? Pressure = 7.A farmer owns a well that is 217 feet deep. He wants to pump 820 gallons of water per minute to the surface. The pressure at the surface must be 49 psi to operate his center pivot. How much horsepower will be needed from his irrigation power unit? (Note: Power = pressure x flow rate) Power = 8.What is the gauge pressure at the bottom of a lake that is 80 meters deep? Pressure = 9.Water moves through a pipe at 5 m/s under an absolute pressure of 340 kPa. The pipe narrows to one half of its original diameter. What is the absolute pressure in the narrow part of the pipe? Pressure = 10.Water flows through a horiztonal pipe at a rate of 100 ft3/min. A pressure gauge placed on a 3.2 inch diameter section of the pipe reads 15 psi. What is the gauge pressure in a section of pipe where the diameter is 5.3 inches? Pressure = 11.If oxygen cools from 169 degrees to 48 degrees F, what is the change of temperature in Kelvin? Change in Kelvin Temperature = 12.A piece of charcoal initially at 180 degrees F experiences a decrease in temperature to 58 degrees F. Express this change of temperature in Celsius. Change in Celsius Temperature = 13.Body temperature is normal at 98.99 degrees F. What is the corresponding temperature on the Celsius scale? Celsius Temperature = 14.A square copper plate 6 cm on a side is 18 degrees C is heated up to 180 degrees C. What is the increase in the area of the copper plate? Area Change = 15.A silver bar is 2.5 feet long at 84 degrees F. How much will it increase in length when it is placed into boiling water (212 degrees F)? Length Change =
A paper airplane is given a push so that it could fly 7m/s 35° North of East, How fast could it go and in what direction would it travel
an oxide cathode of a vacuum tube has a work function of 2.0 eV. Calculate the electron flux (number per time per area) from thermal emission when the cathode is heated to 1000 K
A parallel plate capacitor has a constant electric field of 2.2x104 N/C among its plates separated by a distance of 3.25mm. An electron is released from rest at the negative plate and allowed to move to the positive plate. What is its speed when it r..
A certain loudspeaker system emits sound isotropically with a frequency of 2270 Hz and an intensity of 1.05 mW/m2 at a distance of 5.26 m. Assume that there are no reflections
q1. a space station in the form of a wheel 128 m in diameter rotates to provide an artificial gravity of 3.20 ms2 for
Two incoherent EM waves of intensities 8I0 and 13I0 travel in the same direction in the same region of space. What is the intensity of EM radiation in this region
The vapor pressure of benzene is 100 mm Hg at 26.1 C and 400 mm Hg at 60.6 C. Estimate the heat of vaporazitaion of benzene in this temperature range
Two students perform an experiment with a train and a ball. Student A rides on a flatcar pulled at 8.35 m/s by a train on a straight, horizontal track. Student B stands at rest, on the ground near the tracks. Student A throw ball with an initial ange..
A photographer uses his camera, whose lens has a 40mm focal length, to focus on an object 5.0m away. How far must the lens move to focus on this second object
When a rock thrown straight upwards gets to the exact top of its path, its. While a car travels around a circular track at a constant speed its
If a person of mass M simply moved forward with speed V , his kinetic energy would be (1/2 MV^2) . However, in addition to possessing a forward motion, What is the average angular velocity of his arms and legs
A pendulum, consisting of a ball of mass m on a light string of length 1.00 m, is swung back to a 45° angle and released from rest. What is the block's speed after the collision
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