Thinking Like an Engineer: An Active Learning Approach (4th Edition)
4th Edition
ISBN: 9780134639673
Author: Elizabeth A. Stephan, David R. Bowman, William J. Park, Benjamin L. Sill, Matthew W. Ohland
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 7, Problem 47RQ
In American football, the playing field is 53.33 yards [yd] wide by 120 yards [yd] long. For a special game, the field staff want to paint the playing field orange Of course, they will use biodegradable paint available for purchase in 25-gallon [gal) containers If the paint is applied in a thickness of 1 2 millimeters [mm] in a uniform layer, how many containers of paint will they need to purchase?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
You are considering the purchase of a slate pool table with a mass of 820 kilograms [kg].
The table is 90 inches [in] long, 45 inches [in] wide and 2.65 feet [ft] high.
The game room where you hope to keep the pool table has a new tile floor.
The tiles can withstand a maximum pressure of 1.5 atmospheres [atm] before being permanently damaged.
The pool table is supported evenly on four (4) identical, cylindrical legs.
What is the minimum required leg diameter in meters [m] to avoid permanent damage to the floor?
A robotic rover on Mars finds a spherical rock with a diameter of 8 centimeters [cm]. The rover picks
up the rock and lifts it 25 centimeters [cm] straight up. The rock has a specific gravity of 4.75. The
gravitational acceleration on Mars is 3.7 meters per second squared [m/s²]. If the robot's lifting arm
has an efficiency of 35% and required 10 seconds [s] to raise the rock 25 centimeters [cm], how
much power in units of watts [W] did the arm use?
A company has several sensors in storage silos to detect the total pressure in the silos to ensure the tanks will not leak. Each tank is designed to withstand a maximum total pressure of 5.8 atmospheres [atm]. An engineer wants to use one of the silos to store liquid nitric acid, which has a density of 97 pound-mass per cubic foot [lbm/ft3]. If the tank is filled to a depth of 80 feet [ft], how much surface pressure in units of atmospheres [atm] can be applied to the top of the liquid inside the tank without exceeding the maximum total pressure of the silo?
Chapter 7 Solutions
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
Ch. 7.1 - Express the following values using an appropriate...Ch. 7.1 - Indicate if the following units are correctly...Ch. 7.3 - Comprehension Check 7-3 The highest mountain in...Ch. 7.3 - To be considered a full-time employee, companies...Ch. 7.4 - In January 2008, Scientific American reported that...Ch. 7.4 - Officially, a hurricane is a tropical storm with...Ch. 7.4 - Many toilets in commercial establishments have a...Ch. 7.5 - Comprehension Check 7-8 A hogshead is a unit of...Ch. 7.5 - Comprehension Check 7-9 In NCAA basketball, a...Ch. 7.5 - A boat is traveling at 20 knots. Convert this...
Ch. 7.6 - Determine the fundamental dimensions of the...Ch. 7.6 - Determine the fundamental dimensions of the...Ch. 7.6 - Identify the quantity through the use of...Ch. 7.7 - The power absorbed by a resistor can be given by P...Ch. 7.7 - Indicate whether the following equation is...Ch. 7.8 - A basketball has a diameter of approximately 27...Ch. 7.8 - Eclipses, both solar and lunar, follow a cycle of...Ch. 7 - Express the following values using scientific...Ch. 7 - Express the following values using scientific...Ch. 7 - Express the following values using scientific...Ch. 7 - Complete the following table.Ch. 7 - Complete the following table.Ch. 7 - Which of the following is the longest distance? A....Ch. 7 - Complete the following table.Ch. 7 - Which of the following is the largest volume? A....Ch. 7 - Complete the following table.Ch. 7 - Which of the following is the fastest speed? A. 50...Ch. 7 - Complete the following table. gallons per minute...Ch. 7 - Which of the following is the largest mass...Ch. 7 - Which of the following is the largest volumetric...Ch. 7 - In China, one "bu" is 1.66 meters [m]. The average...Ch. 7 - On April20, 2010, the DeepWater Horizon oil...Ch. 7 - In China, one "fen" is defined as 3.3 millimeters...Ch. 7 - A blink of a human eye takes approximately 300-400...Ch. 7 - If the Sl prefix system was expanded to other...Ch. 7 - A "jiffy" is defined as 1/60 of a second [s]....Ch. 7 - A "knot'' is a unit of speed in marine travel. One...Ch. 7 - The Earth's escape velocity is 7 miles per second...Ch. 7 - A manufacturing process uses 10 pound-mass of...Ch. 7 - CA 7-23 Determine the fundamental dimensions of...Ch. 7 - Determine the fundamental dimensions of the...Ch. 7 - Identify the following quantities through the use...Ch. 7 - Football helmet safety is a current focus of...Ch. 7 - For each equation listed, indicate if the equation...Ch. 7 - What are the dimensions of the coefficient (k) in...Ch. 7 - When shipping freight around the world, most...Ch. 7 - A circular window has a 10-inch [in] radius. What...Ch. 7 - A body traveling in a circle experiences an...Ch. 7 - In NCAA basketball, the center circle diameter...Ch. 7 - Continental drift has an average velocity of 2...Ch. 7 - In many engineering uses, the value of "g," the...Ch. 7 - In 2001 , the first iPodTM by Apple had a rated...Ch. 7 - New plastic fuel tanks for cars can be molded to...Ch. 7 - The longest sea bridge, the Jiaozhou Bay Bridge in...Ch. 7 - The term "deep sea" refers to everything in the...Ch. 7 - A category F5 tornado can have wind speeds of 300...Ch. 7 - Some species of bamboo have been measured to grow...Ch. 7 - A new hybrid automobile with regenerative braking...Ch. 7 - If a liquid evaporates at a rate of 50 kilograms...Ch. 7 - Acetone must be kept in a closed pressure tank due...Ch. 7 - The AbioCorTM artificial heart pumps at a rate of...Ch. 7 - If a pump moves water at 70 gallons per minute...Ch. 7 - On April 20, 2010, the DeepWater Horizon oil...Ch. 7 - One of the National Academy of Engineering Grand...Ch. 7 - The board foot is often used as a measure of...Ch. 7 - The oxgang is unit of area equal to 20 acres....Ch. 7 - In an effort to modernize the United States...Ch. 7 - Old Mississippi River paddle wheelers routinely...Ch. 7 - The grain is a unit of mass equal to 64.8...Ch. 7 - The hand [hh] is a traditional unit for measuring...Ch. 7 - The Units Society Empire (USE) had defined the...Ch. 7 - The Units Society Empire (USE) had defined the...Ch. 7 - The Units Society Empire (USE) had defined the...Ch. 7 - The Units Society Empire (USE) had defined the...Ch. 7 - Many common quantities with derived units do not...Ch. 7 - Electrical ficld (E) [V /m]Ch. 7 - Acoustic impedance (Z) [Pa s/m]Ch. 7 - Magnetic permeability ()[V S / A]Ch. 7 - Ideal gas" constant (R) [atm L/(mol K )]Ch. 7 - Stefan-Boltzmann constant () [W I (m2K4)]Ch. 7 - Analyze l he following term using fundamental...Ch. 7 - We wish to analyze the velocity of a fluid exiting...Ch. 7 - Wind energy uses large fans to extract energy from...Ch. 7 - Based on the following equation, express the...Ch. 7 - Based on the following equation, express the...Ch. 7 - Based on the following equation, express the...Ch. 7 - Based on the following equation, answer the...Ch. 7 - Based on the following equation, answer the...Ch. 7 - Based on the following equation, answer the...Ch. 7 - A dust collection system operates using the...Ch. 7 - Determine if the following expression is a valid...Ch. 7 - The largest hailstone is the United States was...Ch. 7 - The largest hailstone is the United States was...Ch. 7 - How large a surface area in units of square feet...Ch. 7 - How large a surface area in units of square feet...Ch. 7 - A box has a volume of 10 gallons [gal]. If two...Ch. 7 - A 1 25-gallon [gal] quantity of molten (liquefied)...Ch. 7 - In American football, the playing field is 53.33...Ch. 7 - For almost four millennia, the Pyramid of Khufu...Ch. 7 - A torus is essentially a tube wrapped into a circ...Ch. 7 - In many engineering uses, the value of "g," the...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Water enters a boiler at 20 degrees Celsius [°C]. The boiler operates for 5 minutes [min] to heat 25 gallons [gal] of water. The boiler requires an input power of 15.5 kilowatts [kW] and is 85% efficient. The specific heat capacity of water is 4.18 kilojoules per kilogram kelvin [kJ /(kg K)]. What is the temperature of the water in degrees Celsius [°C] as it exits the boiler?arrow_forwardIn an effort to modernize the United States interstate system, the Department of Transportation proposes to change speed limits from miles per hour to "flashes." A flash is equal to 10 feet per second [ft/s]. On a car speedometer, what will the new range be in units of "flashes" if the old scale was set from 0 to 160 miles per hour [mi/h or mph]? E Click the icon to view the conversion table for length and time. The new range will be from to flashes. (Round your answers to the nearest whole number.)arrow_forwardA heat recovery system (HRS) is used to conserve heat from the surroundings and supply it to the Mars Rover. The HRS fluid loops use Freon as the working fluid. The instrumentation must be kept as a temperature greater than −67 degrees Fahrenheit [°F] to avoid damage. The temperature in the area of Mars where the rover is exploring is 189 kelvins [K]. If the system must remove 47.4 British Thermal Units [BTU] of energy, what volume of Freon is needed in units of liters [L]?arrow_forward
- To heat potatoes, you use a microwave with an output power of 780 watts [W]. The microwave has "pre-set" cook buttons. The "potato" button will cook a 0.625 pound-mass [lbm] potato by heating the potato from room temperature (assumed to be 68 degrees Fahrenheit [°F]) to 425 degrees Fahrenheit [°F]. The specific heat of a potato is 3.4 kilojoules per kilogram kelvin [kJ/(kg K)]. What is the length of time the "pre-set" button is programmed to operate in units of minutes [min]?arrow_forwardA 4.5-centimeter [cm] radius cylindrical tank holds a liquefied version of a new polymeric compound for space flight to Mars. The tank is pressurized to prevent evaporation at a surface pressure of 1.38 bar [bar]. A total pressure probe located at the bottom of the tank reads 21.45 pound-force per square inch [psi]. If the specific gravity of the gel is 8.9, what is the mass of gel contained in the tank in units of kilograms [kg]? Assume acceleration due to gravity simulated on the spacecraft to be 8.4 meters per second squared [m/s]. Click the icon to view the conversion table. The mass of the gel is .02 kg. (Round your answer to two decimal places.)arrow_forwardA 4.5-centimeter [cm] radius cylindrical tank holds a liquefied version of a new polymeric compound for space flight to Mars. The tank is pressurized to prevent evaporation at a surface pressure of 1.38 bar [bar]. A total pressure probe located at the bottom of the tank reads 21.65 pound-force per square inch [psi]. If the specific gravity of the gel is 8.9, what is the mass of gel contained in the tank in units of kilograms [kg]? Assume acceleration due to gravity simulated on the spacecraft to be 8.4 meters per second squared [m/s2].arrow_forward
- On April 20, 2010, the DeepWater Horizon oil drilling operation exploded, causing the largest marine oil spill ever recorded. When estimating the volume of an oil spill, if there are traces of color in the oil slick, it is estimated at 150 nanometers[nm] thick and a ratio of 1.4 liters per hectare[L/ha]. What is this ratio in gallons per square kilometer [gal/km2]? The ratio is ___ gal/km2.arrow_forwardA robot is exploring Charon, the dwarf planet Pluto's largest moon. Gravity on Charon is 0.278 meters per second [m/s2]. During its investigations, the robot picks up a small spherical rock for inspection. The rock has a diameter of 6 centimeters [cm] and is lifted 16 centimeters [cm] above the surface. The specific gravity of the rock is 10.7. The mechanism lifting the rock is powered by a 9-volt [V] power supply and draws 1.09 milliamperes [mA] of current. It requires 13 seconds [s] to perform this lifting task. What is the efficiency of the robot?arrow_forwardK The Curiosity rover landed on Mars on August 6, 2012, and is currently exploring the surface. Curiosity uses a radioisotope thermoelectric generator (RTG) to provide power for all operations. The Curiosity RTG has a maximum output of 110 watts [W], and loses 2000 watts [W] as heat. By comparison, Viking 1 spacecraft launched in 1975. The Viking 1 has an input power of 0.75 horsepower [hp] and loses 525 watts [W] to heat. Which device is more efficient? Click the icon to view the convertion table for power. atic) S The efficiency of Curiousity is%. (Round your answer to one decimal place.) Get more help - mce&style=highered&disableStandbyIndicator=true&assignmentHandles Locale=true# 6 MacBook Pro & 7 = *00 BETERE 8 9 C ) 0 Clear all P I' Check answer 11 + =arrow_forward
- In a factory, 12 gallons [gal] of a liquid need to be raised 30 feet [ft] to be loaded into a piece of equipment. During this process, the electric motor loses 700 watts [W] to heat while operating in a circuit that requires 15 amperes [A] of current and 110 volts [V]. The liquid has a total mass of 5 slugs [slugs] and the mass of the container is negligible. Determine the time required to lift the liquid in seconds [s].arrow_forwardRebar is often made of steel and is commonly used to reinforce concrete. One of the rebar pieces has a circular cross-sectional area, a Young's Modulus of 198 gigapascals [GPa), and yields at a force of 27 kilopounds-force [kip]. At this force, the rebar has a strain of 0.00367 inches per inch [i]. Determine the radius of the rebar in units of inches [in]. harrow_forwardA probe on a dwarf planet collects 7 moles [mol] of dust material. The sample, which completely fills a cube with a side length of 5 centimeter [cm], weighs 0.18 newtons [N] on the dwarf planet. The density of the material is determined to be 3160 grams per liter [g/L]. Determine the gravity of the dwarf planet in units of meters per seconds squared [m/s*]. Click the icon to view the conversion table. Click the icon to view SI prefixes (numbers less than one). Click the icon to view SI prefixes (numbers greater than one). The gravity is m/s“. (Round your answer to three decimal places.)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
Chemical and Phase Equilibrium; Author: LearnChemE;https://www.youtube.com/watch?v=SWhZkU7e8yw;License: Standard Youtube License