For each equation listed, indicate if the equation is a correct mathematical expression based on dimensional considerations.
The following equations use these variables·
Acceleration (a) [=] m/s2 | Area (A) [=] acres | Energy (E) [=] cal |
Mass (m) [=] kg | Power (P) [=] hp | Velocity (v) [=] mi/h or mph |
a. Acceleration = (velocity)2/(area)1/2
b. Energy= (mass) (velocity) (area) 1/2
c. Power = (mass) (velocity)/(time)
Want to see the full answer?
Check out a sample textbook solutionChapter 7 Solutions
THINKING LIKE AN ENGINEER W/ACCESS
- Suppose you're converting a bill of materials for machining feedstock from the British gravitational (U.S. system) of units to International System (SI) units. Your goal is to have all of the material quantities in kilograms. Your bill of materials lists values for required weights of brass rod in pounds. To convert to these values to kilograms you first you divide by gravitational acceleration in feet per second squared to get a mass in slugs, then convert slugs to kilograms using standard conversion factors. Group of answer choices True Falsearrow_forwardStudy the table to the right and then answer these questions by filling in the blank columns in the table.1. Convert the miles per gallon figures in the table tokilometers per liter (kpl).2. How many liters (and how many gallons) of gasolinewould each type of car use annually if it were driven19,300 kilometers (12,000 miles) per year?3. How many kilograms (and how many pounds) of carbon dioxide would be released into the atmosphereannually by each car, based on the fuel consumptioncalculated in question 2? Assume that the combustion of gasoline releases 2.3 kilograms of CO2 per liter(19 pounds per gallon).arrow_forwardWrite the primary dimensions of each of the following variables, showing all your work: (a) specific heat at constant pressure cp; (b) specific weight ? g; (c) specific enthalpy h.arrow_forward
- Process Fluid Mechanics for Chemical Engineers , please help in this Question , thanks.arrow_forwardTires are one of the most frequently encountered applications of the gas laws that we never think about. We fill our tires with air, or with nitrogen, but it always works out the same way. Enough gas goes in, the tire inflates, and then the pressure starts going up. In this assignment, we’ll be investigating the ways that the gas laws impact how we treat our tires. Q1. I have good information that in Fast 29, Dominic Toretto (Vin Diesel) will need to refill a tire quickly during a dramatic moment. For this reason, he has a 3.00 L tank of compressed air that is under 2.7892*103 mmHg and is kept cool in dry ice at -35.0 °C. When Dom hooks his compressed air up to his completely empty 10.50 L tire at 39.2 °C and lets it run, what will his final tire pressure be, in atm? Assume all the air is transferred into the tire. Is his tire pressure above the 2.31 atm that he needs to save the planet/his family/his crew? Q2. Your car tire pressure sensor looks to see when your tire pressure…arrow_forwardThe amount of time it takes for a pendulum to swing “to-and-fro” through one complete cycle is called the “period” and is calculated using the following equation: where T = period in seconds, I = mass moment of inertia, m = mass of pendulum in kilograms g = gravitational acceleration, 9.8 m/s2, h = effective length of pendulum in meters What is the appropriate unit for I if the preceding equation is to be homogeneous in units? Please show all of your work.arrow_forward
- For the Following question Graph all 4 : [I just need all 4 graphs and please explain and make clean solution] Position vs time Velocity vs time Acceleration vs time Force vs time [For your convenience, I have solved the numerical solutions for the problem] (Please Look at the picture since it is much cleaner) Question : A 550 kilogram mass initially at rest acted upon by a force of F(t) = 50et Newtons. What are the acceleration, speed, and displacement of the mass at t = 4 second ? a =(50 e^t)/(550 ) [N/kg] v = ∫_0^t▒(50 e^t )dt/(550 )= v_0 +(50 e^t-50)/550=((e^t- 1))/11 x = ∫_0^t▒(e^t- 1)dt/(11 )= x_0 +(e^t- t - 1)/(11 ) a(4s)=(50*54.6)/550= 4.96[m/s^2 ] v(4s)=((e^4-1))/11= 4.87[m/s] x(4s)=((e^4- 4 - 1))/11= 4.51 [m]arrow_forward1. Energy consumption in a country from 2001 to 2011 increased from 1041.3 million to 1526.1 million BOE (barrels of oil equivalent). If the high calorific value (HHV) of the oil is 141,000 kJ/gallon what is the increase in energy consumption over 10 years in Joule units. What is the rate of energy consumption per year? 2. Based on data on the rate of energy consumption per year from question no. 1, if the growth rate energy 2.5% per year, calculate the doubling time (td) and what is the approximate rate of energy growth in 2021.arrow_forwardOn an alien planet, the law that expresses the flow of blood through a blood vessel, F, as a function of the radius r of the vessel is f=kr5/2where k is a constant. Certain geological features of this planet produce a gas that changes the radius of blood vessels by 5% at the time of inhalation. What would the corresponding increase in blood flow through the vessel at this time be? Write 1-2 sentences explaining how you found your answer.arrow_forward
- plsss pasagot po asap nandyan po link ng steam table na gagamitin salamat using this steam table https://www.google.com/url?sa=t&source=web&rct=j&url=https://homepages.wmich.edu/~cho/ME432/Appendix1Udated_metric.pdf&ved=2ahUKEwictab6tLX3AhU4yjgGHZ7OANIQFnoECDQQAQ&usg=AOvVaw0UoKHhB-caJ5SjO2gZ695darrow_forwardCompletely solve and box the final answer. Please show the units to show the unit cancellations. Write legibly 2. During a steady flow process, the pressure of the working substance drops from 1,380 kpa to 138 kpa, the speed increases from 61 m/s to 305 m/s, the internal energy of the open system decreases 58.1 KJ/kg, and the specific volume increases from 0.0625 m3/kg to 0.5 m3/kg. No heat is transferred, determine the work in KW if the mass flow at the rate of 272.15 kg/hr.arrow_forwardPlease include a kinamatic diagram (one for velocity and one for acceleration). Please DO NOT solve this using velocity analysis (cartesian vector analysis i j k). I would like it to be solved using the IC scalar method as requested in the picture for the question. Thank you for your understanding. If you can solve it as soon as possible that would be great and I will give you a thumps up and positive feedback :)arrow_forward
- 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