Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given. Given Pressure P atm Express...

Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given. Given Pressure P atm Express...

Figure 3.22 represents an oil storage drum that is open to the atmosphere at the top. Some water was accidentally pumped into the tank and settled to the bottom as shown in the figure. Calculate the...

A storage drum for crude oil (sg = 0.89) is 32 ft deep and open at the top. Calculate the pressure at the bottom.

Describe the construction of a barometer.

Why is mercury a convenient fluid to use in a barometer?

If water were to be used instead of mercury in a barometer, how high would the water column be?

What is the barometric pressure reading in inches of mercury corresponding to 14.696 psia?

What is the barometric pressure reading in millimeters of mercury corresponding to 101.325 kPa(abs)?

Why must a barometric pressure reading be corrected for temperature?

By how much would the barometric pressure reading decrease from its sea-level value at an elevation of 1250 ft?

Denver, Colorado, is called the Mile-High City because it is located at an elevation of approximately 5200 ft. Assuming that the sea-level pressure is 101.3 kPa(abs), what would be the approximate...

The barometric pressure is reported to be 28.6 in of mercury. Calculate the atmospheric pressure in psia.

A barometer indicates the atmospheric pressure to be 30.65 in of mercury. Calculate the atmospheric pressure in psia.

What would be the reading of a barometer in inches of mercury corresponding to an atmospheric pressure of 14.2 psia?

A barometer reads 745 mm of mercury. Calculate the barometric pressure reading in kPa(abs).

The pressure in a ventilation duct at the inlet to a fan is measured to be -3.68 in H 2 O. Express this pressure in psi and Pa.

The pressure in an air conditioning duct is measured to be 3.24 mmHg. Express this pressure in Pa and psi.

The pressure in a compressed natural gas line is measured to be 21.6 mmHg. Express this pressure in Pa and psi.

The pressure in a vacuum chamber is -12.6 psig. Express this pressure in inHg.

The performance of a fan is rated at a pressure differential of 12.4 inWC. Express this pressure in psi and Pa.

The pressure of a pressure blower is rated at a pressure differential of 115 inWC. Express this pressure in psi and Pa.

A passive solar water heater is to be installed on the roof of a multi-story building. The heater tank is open to atmospheric pressure and is mounted 16 m above ground level. In the static...

In the eye of a hurricane, pressure can sometimes drop from normal atmospheric pressure all the way down to 11 psia. What would be the height reading, in inches, of a mercury barometer there?

An environmental instrumentation package is to be designed to be lowered into the Mariana Trench to a depth of 11 km into the Pacific Ocean. If the case is to be watertight at that depth in sea...

A scuba diver will descend one and a half atmospheres into a fresh water lake. Calculate the depth of the dive. Note that an atmosphere is a measure sometimes used by divers to indicate a depth in...

An inclined manometer similar to the one shown in Figure 3.14 is used for sensitive pressure measurement. It is inclined at an angle of 25 degrees above the horizontal and uses red gage fluid with a...

A meteorologist reports a high pressure system with barometric pressure of 790 mm of mercury and then later in the year a low pressure system with a pressure of 738 mm of mercury. What is the total...

What is the pressure, in psig, at the bottom of a swimming pool that is 10 ft deep?

Calculate the total force on the bottom of the closed tank shown in Fig. 4.23 if the air pressure is 52 kPa(gage). Air 0,50 m Oil (sg -0.85) 0.75 m Water 18 m 1.2 m

If the length of the tank in Fig. 4.24 is 1.2 m, calculate the total force on the bottom of the tank. 3 m Tank is Air 200 kPa (gage) 1.2 m long Oil 1.5 m (sg =0.80) Water 2.6 m 2.0 m

The wall shown in Fig. 4.28 is 20 ft long. (a) Calculate the total force on the wall due to water pressure and locate the center of pressure; (b) Calculate the moment due to this force at the base of...

Refer to Fig. 4.30. 3.5 ft 12 in- Reservoir for a hydraulic system. Compute force on side AB. 14 in Oil (sg = 0.93) 8 in

For the water tank shown in Fig. 4.43, compute the magnitude and location of the total force on each vertical end wall. 8 ft Water 60 15 ft 10 ft

For the orange-drink tank shown in Fig. 4.32, compute the magnitude and location of the total force on each vertical end wall. The tank is 3.0 m long. 30 Orange drink (sg - 1.10) 3.0 m 4.6 m 2.4-m...

Figure 4.46 shows a tank of water with a circular pipe connected to its bottom. A circular gate seals the pipe opening to prohibit flow. To drain the tank, a winch is used to pull the gate open....

Repeat Problem 4.19 (Fig. 4.31), except that the tank is now sealed at the top with a pressure of 13.8 kPa above the oil. 450-mm diameter 0.45 m 1.5 m Circular view port is centered in inclined side...

The E-field of an electromagnetic wave is described by Write an expression for the B-field. Determine vector B(0, 0). 3 (i + jEo sin (kz ot + /6)

Starting with Eq. (3.32), prove that the energy densities of the electric and magnet fields are equal (u E = u B ) for an electromagnetic wave. (3.32) UB 2o

Prove that the irradiance of a harmonic EM wave in vacuum is given by and then determine the average rate at which energy is transported per unit area by a plane wave having an amplitude of 15.0 V/m....

The average magnitude of the Poynting vector for sunlight arriving at the top of Earths atmosphere (1.5 10 11 m from the Sun) is about 1.4 kW/m 2 . (a) Compute the average radiation pressure exerted...

The time average of some function Æ(t) taken over an interval T is given by where t' is just a dummy variable. If Ï = 2Ï/Ï is the period of a harmonic function, show that vector...

Determine the index of refraction of a medium if it is to reduce the speed of light by 10% as compared to its speed in vacuum.

Figure P.4.8 shows whats called a corner mirror. Determine the direction of the exiting ray with respect to the incident ray. Figure P.4.8

Show analytically that a beam (in a medium of index n 1 ) entering a planar transparent plate (of index n 2 and thickness d ), as in Fig. P.4.38, emerges parallel to its initial direction. Derive an...

Derive an expression for the speed of the evanescent wave in the case of internal reflection. Write it in terms of c, n i , and i .

A buoy is a solid cylinder 0.3 m in diameter and 1.2 m long. It is made of a material with a specific weight of 7.9 kN/m 3 . If it floats upright, how much of its length is above the water?

A hydrometer is a device for indicating the specific gravity of liquids. Figure 5.21 shows the design for a hydrometer in which the bottom part is a hollow cylinder with a 1.00-in diameter, and the...

A brass weight is to be attached to the bottom of the cylinder described in Problems 5.22 and 5.23, so that the cylinder will be completely submerged and neutrally buoyant in water at 95°C. The...

A closed, hollow, empty drum has a diameter of 24.0 in, a length of 48.0 in, and a weight of 70.0 lb. Will it float stably if placed upright in water?

A scuba diver with wet suit, tank, and gear has a mass of 78 kg. The diver and gear displace a total volume of 82.5 L of sea water. The diver would like to add enough lead weights to become neutrally...

Convert 8720 gal/min to m 3 /s.

Convert a volume flow rate of 125 L/min to m 3 /s.

Convert 4500 L/min to m 3 /s.

Convert 15000 L/min to m 3 /s.

Convert 459 gal/min to L/min.

Convert 8720 gal/min to L/min.

Table 6.2 lists the range of typical volume flow rates for centrifugal fire-fighting pumps to be 500 to 2500 gal/min. Express this range in the units of ft 3 /s and m 3 /s. Flow rate (m/h) Type of...

A small pump delivers 0.85 gal/h of liquid fertilizer. Express this flow rate in ft 3 /s.

A small metering pump delivers 19.5 mL/min of water to dilute a waste stream. Express this flow rate in m 3 /s.

Water at 10C is flowing at 0.075 m 3 /s. Calculate the weight flow rate and the mass flow rate.

After the refrigerant from Problem 6.31 flashes into a vapor, its specific weight is 12.50 N/m 3 . If the weight flow rate remains at 28.5 N/h, compute the volume flow rate. In Problem A liquid...

A fan delivers 640 ft 3 /min (CFM) of air. If the density of the air is 1.20 kg/m 3 , compute the mass flow rate in slugs/s and the weight flow rate in lb/h.

A furnace requires 1200 lb/h of air for efficient combustion. If the air has a specific weight of 0.062 lb/ft 3 , compute the required volume flow rate.

If a pump removes 1.65 gal/min of water from a tank, how long will it take to empty the tank if it contains 7425 lb of water?

Calculate the diameter of a pipe that would carry 75.0 ft 3 / s of a liquid at an average velocity of 10.0 ft/s.

From the list of standard hydraulic steel tubing in Appendix G.2, select the smallest size that would carry 2.80 L/min of oil with a maximum velocity of 0.30 m/s.

Use Fig. 6.3 to specify suitable Schedule 40 pipe sizes for carrying the given volume fl ow rate of water in the suction line and in the discharge line of a pumped distribution system. Select the...

Calculate the pressure required in the larger section just ahead of the nozzle in Fig. 6.22 to produce a jet velocity of 75 ft/s. The fluid is water at 180°F. 1.0-in diameter Hlow 0.75-in diameter

Use Fig. 6.3 to specify suitable Schedule 40 pipe sizes for carrying the given volume fl ow rate of water in the suction line and in the discharge line of a pumped distribution system. Select the...

Use Fig. 6.3 to specify suitable Schedule 40 pipe sizes for carrying the given volume fl ow rate of water in the suction line and in the discharge line of a pumped distribution system. Select the...

A car is traveling at 25 m/s when the driver spots a large pothole in the road a distance 30 m ahead. She immediately applies her brakes. If her acceleration is -27 m/s 2 , does she manage to stop...

Basketball on the Moon. If LeBron James can jump 1.5 m high on Earth, how high could he jump on the Moon (assume an indoor court), where g - 1.6 m/s 2 ?

A cable attached to a block of mass 12 kg pulls the block along a horizontal floor at a constant velocity. If the tension in the cable is 5.0 N, what is the coefficient of kinetic friction between...

A crate of mass 55 kg is attached to one end of a string, and the other end of the string runs over a pulley and is held by a person as in Figure 3.22A. If the person pulls with a force of 85 N, what...

A car of mass 1200 kg is lowered onto a junk pile at the end of the cable of a large crane. If the car is accelerating downward at 0.20 m/s 2 , what is the tension in the cable?

A hockey puck slides with an initial speed of 50 m/s on a large frozen lake. If the coefficient of kinetic friction between the puck and the ice is 0.030, what is the speed of the puck after 10 s?

A car is moving with a velocity of 20 m/s when the brakes are applied and the wheels lock (stop spinning). The car then slides to a stop in 40 m. Find the coefficient of kinetic friction between the...

You are given the job of moving a refrigerator of mass 100 kg across a horizontal floor. The coefficient of static friction between the refrigerator and the floor is 0.45. What is the minimum force...

A Styrofoam ball of radius 28 cm falls with a terminal speed of 5.0 m/s. What is the mass of the ball?

After struggling to move the refrigerator in Problem 41, you finally apply enough force to get it moving. What is the minimum force required to keep it moving with a constant velocity? Assume K -...

A hockey puck is sliding down an inclined plane with angle θ = 15° as shown in Figure P4.49. If the puck is moving with a constant speed, what is the coefficient of kinetic friction...

A soccer ball is kicked with an initial speed of 30 m/s at an angle of 25 with respect to the horizontal. Find (a) The maximum height reached by the ball and (b) The speed of the ball when it is at...

A hockey puck is given an initial velocity such that v x = 12 m/s and v y = 18 m/s, where the xy plane is horizontal. (a) What is the initial speed of the puck? (b) What angle does the initial...

While maneuvering at the scene of a fire, a truck accidently backs over a fire hydrant and breaks it. The diameter of the water line to the hydrant is 6 in, but due to internal plumbing, the...

You would like to empty the in-ground pool in the back yard but the drain at the bottom of the pool is no longer functional. Given the dimensions in Fig. 6.43, determine the flow rate from the pool...

You are to develop a mixing valve for use in a dairy processing facility. The rated output of the valve is to be 10 gal/min of chocolate milk. There will be two separate input lines, one for milk and...

A decorative fountain for a corporate world headquarters is to be designed to shoot a stream of water straight up in the air. If the designers would like the fountain to reach at least 50 ft into the...

Repeat Problem 6.100 if the tank is sealed and a pressure of 35 kPa(gage) is above the water in the tank. Repeat Problem Compute the time required to reduce the depth in the tank shown in Fig. 6.14...

Repeat Problem 6.96 if the tank is sealed and a pressure of 20 kPa(gage) is above the water in the tank. Repeat Problem Compute the time required to empty the tank shown in Fig. 6.14 if the original...

Repeat Problem 6.101 if the tank is sealed and a pressure of 2.8 psig is above the water in the tank. Repeat Problem Compute the time required to reduce the depth in the tank shown in Fig. 6.14 by...

Repeat Problem 6.97 if the tank is sealed and a pressure of 5.0 psig is above the water in the tank. Repeat Problem Compute the time required to empty the tank shown in Fig. 6.14 if the original...

Compute the time required to reduce the depth in the tank shown in Fig. 6.14 by 21.0 ft if the original depth is 23.0 ft. The tank diameter is 46.5 ft and the orifice diameter is 8.75 in. dh

Compute the time required to reduce the depth in the tank shown in Fig. 6.14 by 12.5 in if the original depth is 38 in. The tank diameter is 6.25 ft and the orifice diameter is 0.625 in. dh

Compute the time required to reduce the depth in the tank shown in Fig. 6.14 by 1.50 m if the original depth is 2.68 m. The tank diameter is 2.25 m and the orifice diameter is 50 mm. dh

Compute the time required to empty the tank shown in Fig. 6.14 if the original depth is 18.5 in. The tank diameter is 22.0 in and the orifice diameter is 0.50 in. dh

Compute the time required to empty the tank shown in Fig. 6.14 if the original depth is 15 ft. The tank diameter is 12 ft and the orifice diameter is 6 in. dh

Compute the time required to empty the tank shown in Fig. 6.14 if the original depth is 55 mm. The tank diameter is 300 mm and the orifice diameter is 20 mm. dh

Derive Torricelli's theorem for the velocity of flow from a tank through an orifice opening into the atmosphere under a given depth of fluid.

Draw a plot of eleveation head, pressure head, velocity head, and total head for the fabricated reducer shown in Fig. 6.28 and analyzed in Problem 6.73. Problem 6.73 For the special fabricated...