Are the results of the Saybolt viscometer tests considered to be direct measurements of viscosity?

A fluid has a kinematic viscosity of 55.3 mm 2 /s at 100F. Determine its equivalent viscosity in SUS at that temperature.

Calculate the kinetic energy in Nm of a 15-kg mass if it has a velocity of 1.20 m/s. The formula for kinetic energy is KE = mv 2 , where m = mass and v = velocity.

Calculate the mass of a body in g if it has a kinetic energy of 94.6 m Nm when moving at 2.25 m/s. The formula for kinetic energy is KE = mv 2 , where m = mass and v = velocity.

Using the data from Table 2.5, report the minimum, nominal, and maximum values for viscosity for ISO grades VG 10, VG 65, VG 220, and VG 1000. Kinematic Viscosity at 40C (cSt) or (mm2/s) Grade ISO VG...

A village of 75 people desires a tank to store a 3-day supply of water. If the average daily usage per person is 1.7 gal, determine the required size of the tank in cubic feet.

A rock has a specific gravity of 2.32 and a volume of 8.64 in 3 . How much does it weigh?

Glycerin has a specific gravity of 1.258. How much would 50 gal of glycerin weigh?

The distance from point B to point D in Figure P1.7 is 3.15 km while the distance from A to B is 3.45 km. What is the distance from A to D? Be sure to give the correct number of significant figures...

A person stretches a rope of length 55 m between the top of a building to the base of a tree 25 m away (Fig. P1.71). How tall is the building? Figure P1.71 ? -Rope +25 m|

A vector A(vector) has a magnitude of 15 (in some unspecified units) and makes an angle of 25 with the x axis, and a vector B(vector) has a magnitude of 25 and make an angle of 70 with the x axis....

Consider the pulse described in terms of its displacement at t = 0 by where C is a constant. Draw the wave profile. Write an expression for the wave, having a speed v in the negative x-direction, as...

It is possible to generate ultrasonic waves in crystals with wavelengths similar to those of light (5 10 -5 cm) but with lower frequencies (6 10 8 Hz). Compute the corresponding speed of such a...

Establish that where A, α, b, and c are all constant, is a solution of the differential wave equation. This is a Gaussian or bell-shaped function. What is its speed and direction of...

The person shown in Figure 2.1 (page 27) is pushing on a refrigerator that sits on a level floor. Assume the section of the floor underneath the refrigerator is very slippery so that the only...

Using a graphical approach (i.e., by estimating the slope at various points), find the qualitative behavior of the acceleration as a function of time for the object described by the velocitytime...

In the drop zone. Consider a skydiver who jumps from an airplane. Suppose she waits for 1 min before opening her parachute and she lands 4 min after leaving the airplane. Draw qualitative plots of...

Write the expression for computing the pressure in a fluid.

Define gage pressure.

The pressure in a certain tank is 55.8 Pa(abs). Are (or can be) true or false. For those that are false, explain why.

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...

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...

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...

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...

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 4.28 (Fig. 4.40), except that the tank is now sealed at the top with a pressure of 4.0 psig above the fluid. 8.0 in Semicircular hatch 10 in 26 in 20-in radius Ethylene glycol sg =...

Use Fig. 4.54. The surface is 60 in long. 48 in 36 in Alcohol sg = 0.79

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?

If the aluminum weights described in Problem 5.10 are placed outside the drum, what volume will be required? Problem 10 A cylindrical drum is 2 ft in diameter, 3 ft long, and weighs 30 lb when empty....

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 a volume flow rate of 3.0 gal/min to m 3 /s.

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.

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?

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...

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...

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...