A truck with a mass of 20000 kg is traveling at 70 miles per hour. (a) Determine
Question:
(a) Determine its kinetic energy (KE) in MJ.
(b) The truck uses an electrical brake, which can convert the kinetic energy into electricity and charge a battery. If the efficiency of the system is 50%, what is the amount of energy in kWh that will be stored in the as the truck comes to a halt?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 14% (7 reviews)
a Use the converter TESTcalc to convert mph ...View the full answer
Answered By
Branice Buyengo Ajevi
I have been teaching for the last 5 years which has strengthened my interaction with students of different level.
4.30+
1+ Reviews
10+ Question Solved
Related Book For
Thermodynamics An Interactive Approach
ISBN: 978-0130351173
1st edition
Authors: Subrata Bhattacharjee
Question Posted:
Students also viewed these Mechanical Engineering questions
-
A truck with a mass of 4000 kg traveling with a speed of 10 m/s collides at right angles with a car with a mass of 1500 kg traveling with a speed of 20 m/s. a. Sketch to proper scale and direction...
-
Find the net force including its direction when each force acts in the direction indicated. 1. Find the acceleration of an automobile of mass 1500 kg acted upon by a driving force of 2200 N that is...
-
An out-of-control truck with a mass of 5000 kg is traveling at (about 80 mi/h) when it starts descending a steep (15o) incline. The incline is icy, so the coefficient of friction is only 0.30. Use...
-
1/ You just started working and you planned to save $5,000 every year in your retirement account. How much money will you have in your retirement account once you retire in 40 years? Your retirement...
-
The bookkeeper at Jefferson Company has not reconciled the bank statement with the Cash account, saying, I dont have time. You have been asked to prepare a reconciliation and review the procedures...
-
Sligo Toys Ltd manufactures one type of wooden toy figure. It buys wood as its direct material for the Forming Department of its Ballinode plant. The toys are transferred to the Finishing Department,...
-
The axial-flow pump shown in Fig. 12.19 is designed to move \(5000 \mathrm{gal} / \mathrm{min}\) of water over a head rise of \(5 \mathrm{ft}\) of water. Estimate the motor power requirement and the...
-
The trial balance of Creative Child Care does not balance. The following errors are detected: a. Cash is understated by $1,400. b. A $3,900 debit to Accounts Receivable was posted as a credit. c. A $...
-
1.3. Write a simple calculator program in Java to perform addition (+), subtraction (-), multiplication (*) or division (\). Consider the following: (50%) a. The program should read three values: the...
-
We have 14 sources, each creating 500 8-bit characters per second. Since only some of these sources are active at any moment, we use statistical TDM to combine these sources using character...
-
A chamber contains 14 kg of nitrogen (molar mass = 28 kg/kmol) at 100 kPa, and 300 K. (a) How many kmol of N2 is in there? (b) If 1 kmol of hydrogen (molar mass 2 kg/kmol) is added to the chamber,...
-
Air flows through a pipe of diameter 50 cm with a velocity of 40 m/s. If the specific volume of air is 0.4 m3/kg, determine (a) The specific kinetic energy (ke) of the flow. (b) The mass flow rate....
-
Computing Basic and Diluted EPS, Convertible Bonds Issued during the Year, Preferred Stock. Use the same information in E20-4 except now assume that the company issued $ 10,000,000, 2.5% convertible...
-
1. A 2.3-kg hockey puck moving at 24 m/s is caught and held by a 75-kg goalie at rest. With what speed does the goalie slide on ice?
-
Sometimes students believe that taking the time to prepare a complete and carefully design research proposal is something to be preached, but not really practice. Identify at least two different...
-
Discuss how political allusions are employed to reveal the author's allegiance or ideological leanings.
-
Four field hockey players are running down the field at the same speed. Player 1 weighs 140 lbs and is running toward the north goal, player 2 weighs 130 lbs and is running toward the south goal,...
-
What is the cost of goods manufactured for 2024? Beginning finished goods, 1/1/2024 Ending finished goods, 12/31/2024 Cost of goods sold Sales revenue Operating expenses $84,000 79,000 306,000...
-
The consolidated statements of cash flows for Cargojet Inc. are in Exhibit 5.24. The company provides domestic air cargo services between 14 major Canadian cities and also operates international...
-
(a) Water flows through the nozzle of a garden hose. Find an expression for m in terms of line pressure P 1 , ambient pressure P 2 , inside hose diameter D 1 , and nozzle outlet diameter D 2 . Assume...
-
An ideal gas under goes a constant pressure (isobaric) process in a closed system. The heat transfer and work are, respectively (a) 0, cvT (b) cvT, 0 (c) cpT, RT (d) R ln(T2/T1), R ln(T2/T1)
-
It is claimed that fruits and vegetables are cooled by 6C for each percentage point of weight loss as moisture during vacuum cooling. Using calculations, demonstrate if this claim is reasonable.
-
During an expansion process, the pressure of a gas changes from 15 to 100 psia according to the relation P = aV + b, where a = 5 psia/ft3 and b is a constant. If the initial volume of the gas is 7...
-
Golden Gate Mining Co. (GGMC) currently has a gold mine operating in Canada and is looking to purchase another gold mine in Peru, operating as Inca Gold Inc. (ICI). You currently work for the CFO at...
-
Cokolo Inc. has entered into the following two derivatives contracts: Purchased put options on 1,000 Trenton Co. shares that have an exercise price of $52 per share and expire in 60 days Negotiated a...
-
As a financial manager (consultant), undertake an investigation on your allocated company to evaluate its strategic financial position. Prepare a business report for the board of directors of the...
Study smarter with the SolutionInn App