Student Solutions Manual For Basic Technical Mathematics And Basic Technical Mathematics With Calculus
11th Edition
ISBN: 9780134434636
Author: Allyn J. Washington, Richard Evans
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 24.4, Problem 38E
To determine
The rate change of the separation of the car and boat after
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A tank contains 200 gal of fresh water. A solution containing 4 lb/gal of soluble
lawn fertilizer runs into the tank at the rate of 1 gal/min, and the mixture is
pumped out of the tank at the rate of 5 gal/min. Find the maximum amount of
fertilizer in the tank and the time required to reach the maximum.
Find the time required to reach the maximum amount of fertilizer in the tank.
t=
min
(Type an integer or decimal rounded to the nearest tenth as needed.)
Suppose the random variable X is normally distributed with mean 80 and standard deviation 16. Find following probabilities. Find ‘b’ such that P(X ≥ b) = 0.975. Find the probability using a normal distribution table AND using ti-83 calculator. SHOW ALL STEPS PLEASE.
Thumbi Irrigation Scheme in Mzimba district is under threat of flooding. In order to
mitigate against the problem, authorities have decided to construct a flood protection
bund (Dyke). Figure 1 is a cross section of a 300m long proposed dyke; together with its
foundation (key). Survey data for the proposed site of the dyke are presented in Table 1.
Table 2 provides swelling and shrinkage factors for the fill material that has been
proposed. The dyke dimensions that are given are for a compacted fill.
(1) Assume you are in the design office, use both the Simpson Rule and Trapezoidal
Rule to compute the total volume of earthworks required. (Assume both the dyke
and the key will use the same material).
(2) If you are a Contractor, how many days will it take to finish hauling the computed
earthworks using 3 tippers of 12m³ each? Make appropriate assumptions.
DIKE CROSS SECTION
OGL
KEY (FOUNDATION)
2m
1m
2m
8m
Figure 1: Cross section of Dyke and its foundation
1.5m from highest OGL
0.5m…
Chapter 24 Solutions
Student Solutions Manual For Basic Technical Mathematics And Basic Technical Mathematics With Calculus
Ch. 24.1 - For the parabola y = 4 − x2, at the point (3, −5)...Ch. 24.1 - Prob. 2PECh. 24.1 - Prob. 1ECh. 24.1 - Prob. 2ECh. 24.1 - Prob. 3ECh. 24.1 - Prob. 4ECh. 24.1 - Prob. 5ECh. 24.1 - Prob. 6ECh. 24.1 - Prob. 7ECh. 24.1 - Prob. 8E
Ch. 24.1 - Prob. 9ECh. 24.1 - Prob. 10ECh. 24.1 - Prob. 11ECh. 24.1 - Prob. 12ECh. 24.1 - In Exercises 11–14, find the equations of the...Ch. 24.1 - Prob. 14ECh. 24.1 - Prob. 15ECh. 24.1 - Prob. 16ECh. 24.1 - Prob. 17ECh. 24.1 - Prob. 18ECh. 24.1 - Prob. 19ECh. 24.1 - Prob. 20ECh. 24.1 - Prob. 21ECh. 24.1 - Where does the normal line to the parabola y = x —...Ch. 24.1 - Prob. 23ECh. 24.1 - Prob. 24ECh. 24.1 - A certain suspension cable with supports on the...Ch. 24.1 - Prob. 26ECh. 24.1 - Prob. 27ECh. 24.1 - Prob. 28ECh. 24.1 - Prob. 29ECh. 24.1 - Prob. 30ECh. 24.2 -
In Example 1, let x1 = 0.3, and find x2.
EXAMPLE...Ch. 24.2 - Prob. 1ECh. 24.2 - Prob. 2ECh. 24.2 - Prob. 3ECh. 24.2 - Prob. 4ECh. 24.2 - Prob. 5ECh. 24.2 - Prob. 6ECh. 24.2 - Prob. 7ECh. 24.2 - Prob. 8ECh. 24.2 - Prob. 9ECh. 24.2 - Prob. 10ECh. 24.2 - Prob. 11ECh. 24.2 - Prob. 12ECh. 24.2 - Prob. 13ECh. 24.2 - Prob. 14ECh. 24.2 - Prob. 15ECh. 24.2 - Prob. 16ECh. 24.2 - Prob. 17ECh. 24.2 - Prob. 18ECh. 24.2 - Prob. 19ECh. 24.2 - Prob. 20ECh. 24.2 - Prob. 21ECh. 24.2 - Prob. 23ECh. 24.2 - Prob. 24ECh. 24.2 - Prob. 25ECh. 24.2 - Prob. 27ECh. 24.2 - Prob. 28ECh. 24.2 - Prob. 29ECh. 24.2 - Prob. 30ECh. 24.3 - Prob. 1PECh. 24.3 - Prob. 1ECh. 24.3 - Prob. 2ECh. 24.3 - Prob. 3ECh. 24.3 - Prob. 4ECh. 24.3 - Prob. 5ECh. 24.3 - Prob. 6ECh. 24.3 - Prob. 7ECh. 24.3 - Prob. 8ECh. 24.3 - Prob. 9ECh. 24.3 - Prob. 10ECh. 24.3 - Prob. 11ECh. 24.3 - Prob. 12ECh. 24.3 - Prob. 13ECh. 24.3 - Prob. 14ECh. 24.3 - Prob. 15ECh. 24.3 - Prob. 16ECh. 24.3 - In Exercises 11–30, find the indicated velocities...Ch. 24.3 - Prob. 18ECh. 24.3 - Prob. 19ECh. 24.3 - Prob. 20ECh. 24.3 - Prob. 21ECh. 24.3 - Prob. 22ECh. 24.3 - Prob. 23ECh. 24.3 - Prob. 24ECh. 24.3 - Prob. 25ECh. 24.3 - Prob. 26ECh. 24.3 - Prob. 27ECh. 24.3 - Prob. 28ECh. 24.3 - Prob. 29ECh. 24.3 - Prob. 30ECh. 24.4 - In Example 2, change each 10 to 12, and then...Ch. 24.4 - In Exercises 1 and 2, make the given changes in...Ch. 24.4 - In Exercises 1 and 2, make the given changes in...Ch. 24.4 - In Exercises 3–6, assume that all variables are...Ch. 24.4 - In Exercises 3–6, assume that all variables are...Ch. 24.4 - In Exercises 3–6, assume that all variables are...Ch. 24.4 - In Exercises 3–6, assume that all variables are...Ch. 24.4 - Prob. 7ECh. 24.4 - Prob. 8ECh. 24.4 - Prob. 9ECh. 24.4 - Prob. 10ECh. 24.4 - Prob. 11ECh. 24.4 - Prob. 12ECh. 24.4 - Prob. 13ECh. 24.4 - Prob. 14ECh. 24.4 - Prob. 15ECh. 24.4 - In Exercises 7–42, solve the problems in related...Ch. 24.4 - Prob. 17ECh. 24.4 - Prob. 18ECh. 24.4 - Prob. 19ECh. 24.4 - Prob. 20ECh. 24.4 - Prob. 21ECh. 24.4 - Prob. 22ECh. 24.4 - Prob. 23ECh. 24.4 - Prob. 24ECh. 24.4 - Prob. 25ECh. 24.4 - Prob. 26ECh. 24.4 - Prob. 27ECh. 24.4 - In Exercises 7–42, solve the problems in related...Ch. 24.4 - In Exercises 7–42, solve the problems in related...Ch. 24.4 - In Exercises 7–42, solve the problems in related...Ch. 24.4 - Prob. 31ECh. 24.4 - Prob. 32ECh. 24.4 - Prob. 33ECh. 24.4 - Prob. 34ECh. 24.4 - Prob. 35ECh. 24.4 - Prob. 36ECh. 24.4 - In Exercises 7–42, solve the problems in related...Ch. 24.4 - Prob. 38ECh. 24.4 - Prob. 39ECh. 24.4 - Prob. 40ECh. 24.4 - Prob. 41ECh. 24.4 - Prob. 42ECh. 24.5 - Prob. 1PECh. 24.5 - Prob. 2PECh. 24.5 - Prob. 1ECh. 24.5 - Prob. 2ECh. 24.5 - Prob. 3ECh. 24.5 - Prob. 4ECh. 24.5 - Prob. 5ECh. 24.5 - Prob. 6ECh. 24.5 - Prob. 7ECh. 24.5 - Prob. 8ECh. 24.5 - Prob. 9ECh. 24.5 - Prob. 10ECh. 24.5 - Prob. 11ECh. 24.5 - Prob. 12ECh. 24.5 - Prob. 13ECh. 24.5 - Prob. 14ECh. 24.5 - Prob. 15ECh. 24.5 - Prob. 16ECh. 24.5 - Prob. 17ECh. 24.5 - Prob. 18ECh. 24.5 - Prob. 19ECh. 24.5 - Prob. 20ECh. 24.5 - Prob. 21ECh. 24.5 - Prob. 22ECh. 24.5 - Prob. 23ECh. 24.5 - Prob. 24ECh. 24.5 - Prob. 25ECh. 24.5 - Prob. 26ECh. 24.5 - Prob. 27ECh. 24.5 - Prob. 28ECh. 24.5 - Prob. 29ECh. 24.5 - Prob. 30ECh. 24.5 - Prob. 31ECh. 24.5 - Prob. 32ECh. 24.5 - Prob. 33ECh. 24.5 - Prob. 34ECh. 24.5 - Prob. 35ECh. 24.5 - Prob. 36ECh. 24.5 - Prob. 37ECh. 24.5 - Prob. 38ECh. 24.5 - Prob. 39ECh. 24.5 - Prob. 40ECh. 24.5 - Prob. 41ECh. 24.5 - Prob. 42ECh. 24.5 - Prob. 43ECh. 24.5 - Prob. 44ECh. 24.5 - Prob. 45ECh. 24.5 - Prob. 46ECh. 24.5 - Prob. 47ECh. 24.5 - Prob. 48ECh. 24.5 - Prob. 49ECh. 24.5 - Prob. 50ECh. 24.5 - Prob. 51ECh. 24.5 - Prob. 52ECh. 24.5 - Prob. 53ECh. 24.5 - Prob. 54ECh. 24.5 - Prob. 55ECh. 24.5 - Prob. 56ECh. 24.5 - Prob. 57ECh. 24.5 - Prob. 58ECh. 24.6 - Prob. 1PECh. 24.6 - Prob. 1ECh. 24.6 - Prob. 2ECh. 24.6 - Prob. 3ECh. 24.6 - Prob. 4ECh. 24.6 - Prob. 5ECh. 24.6 - Prob. 6ECh. 24.6 - Prob. 7ECh. 24.6 - Prob. 8ECh. 24.6 - Prob. 9ECh. 24.6 - Prob. 10ECh. 24.6 - Prob. 11ECh. 24.6 - Prob. 12ECh. 24.6 - Prob. 13ECh. 24.6 - Prob. 14ECh. 24.6 - Prob. 15ECh. 24.6 - Prob. 16ECh. 24.6 - Prob. 17ECh. 24.6 - Prob. 18ECh. 24.6 - Prob. 19ECh. 24.6 - Prob. 20ECh. 24.6 - Prob. 21ECh. 24.6 - Prob. 22ECh. 24.6 - Prob. 23ECh. 24.6 - Prob. 24ECh. 24.6 - Prob. 25ECh. 24.6 - Prob. 26ECh. 24.6 - Prob. 27ECh. 24.6 - Prob. 28ECh. 24.6 - Prob. 29ECh. 24.6 - Prob. 30ECh. 24.6 - Prob. 31ECh. 24.6 - Prob. 32ECh. 24.7 - Prob. 1PECh. 24.7 - Prob. 2PECh. 24.7 - Prob. 1ECh. 24.7 - Prob. 2ECh. 24.7 - The height (in ft) of a flare shot upward from the...Ch. 24.7 - Prob. 4ECh. 24.7 - Prob. 5ECh. 24.7 - Prob. 6ECh. 24.7 - Prob. 7ECh. 24.7 - Prob. 8ECh. 24.7 - Prob. 9ECh. 24.7 - Prob. 10ECh. 24.7 - Prob. 11ECh. 24.7 - Prob. 12ECh. 24.7 - In deep water, the velocity of a wave is , where a...Ch. 24.7 - Prob. 14ECh. 24.7 - Prob. 15ECh. 24.7 - Prob. 16ECh. 24.7 - A microprocessor chip is being designed with a...Ch. 24.7 - Prob. 18ECh. 24.7 - What are the dimensions of the largest rectangular...Ch. 24.7 - A rectangular storage area is to be constructed...Ch. 24.7 - Prob. 21ECh. 24.7 - Prob. 22ECh. 24.7 - Prob. 23ECh. 24.7 - Prob. 24ECh. 24.7 - Prob. 25ECh. 24.7 - Prob. 26ECh. 24.7 - Prob. 27ECh. 24.7 - Prob. 28ECh. 24.7 - Prob. 29ECh. 24.7 - Prob. 30ECh. 24.7 - Prob. 31ECh. 24.7 - Prob. 32ECh. 24.7 - Prob. 33ECh. 24.7 - What is the minimum slope of the curve y = x5 −...Ch. 24.7 - Prob. 35ECh. 24.7 - Prob. 36ECh. 24.7 - Prob. 37ECh. 24.7 - Prob. 38ECh. 24.7 - Prob. 39ECh. 24.7 - Prob. 40ECh. 24.7 - Prob. 41ECh. 24.7 - Computer simulation shows that the drag F (in N)...Ch. 24.7 - Prob. 43ECh. 24.7 - The potential energy E of an electric charge q due...Ch. 24.7 - An open box is to be made from a square piece of...Ch. 24.7 - Prob. 46ECh. 24.7 - Prob. 47ECh. 24.7 - Prob. 48ECh. 24.7 - An oil pipeline is to be built from a refinery to...Ch. 24.7 - Prob. 50ECh. 24.7 - Prob. 51ECh. 24.7 - Prob. 52ECh. 24.7 - Prob. 53ECh. 24.7 - Prob. 54ECh. 24.8 - Prob. 1PECh. 24.8 - Prob. 2PECh. 24.8 - Prob. 1ECh. 24.8 - Prob. 2ECh. 24.8 - Prob. 3ECh. 24.8 - Prob. 4ECh. 24.8 - Prob. 5ECh. 24.8 - Prob. 6ECh. 24.8 - Prob. 7ECh. 24.8 - Prob. 8ECh. 24.8 - Prob. 9ECh. 24.8 - Prob. 10ECh. 24.8 - Prob. 11ECh. 24.8 - Prob. 12ECh. 24.8 - Prob. 13ECh. 24.8 - Prob. 14ECh. 24.8 - Prob. 15ECh. 24.8 - Prob. 16ECh. 24.8 - Prob. 17ECh. 24.8 - Prob. 18ECh. 24.8 - Prob. 19ECh. 24.8 - Prob. 20ECh. 24.8 - Prob. 21ECh. 24.8 - Prob. 22ECh. 24.8 - Prob. 23ECh. 24.8 - Prob. 24ECh. 24.8 - Prob. 25ECh. 24.8 - Prob. 26ECh. 24.8 - Prob. 27ECh. 24.8 - Prob. 28ECh. 24.8 - Prob. 29ECh. 24.8 - Prob. 30ECh. 24.8 - Prob. 31ECh. 24.8 - Prob. 32ECh. 24.8 - Prob. 33ECh. 24.8 - Prob. 34ECh. 24.8 - Prob. 35ECh. 24.8 - Prob. 36ECh. 24.8 - Prob. 37ECh. 24.8 - Prob. 38ECh. 24.8 - Prob. 39ECh. 24.8 - Prob. 40ECh. 24.8 - Prob. 41ECh. 24.8 - Prob. 42ECh. 24.8 - Prob. 43ECh. 24.8 - Prob. 44ECh. 24 - Prob. 1RECh. 24 - Prob. 2RECh. 24 - Prob. 3RECh. 24 - Prob. 4RECh. 24 - Prob. 5RECh. 24 - Prob. 6RECh. 24 - Prob. 7RECh. 24 - Prob. 8RECh. 24 - Prob. 9RECh. 24 - Prob. 10RECh. 24 - Prob. 11RECh. 24 - Prob. 12RECh. 24 - Prob. 13RECh. 24 - Prob. 14RECh. 24 - Prob. 15RECh. 24 - Prob. 16RECh. 24 - Prob. 17RECh. 24 - Prob. 18RECh. 24 - Prob. 19RECh. 24 - Prob. 20RECh. 24 - Prob. 21RECh. 24 - Prob. 22RECh. 24 - Prob. 23RECh. 24 - Prob. 24RECh. 24 - Prob. 25RECh. 24 - Prob. 26RECh. 24 - Prob. 27RECh. 24 - In Exercises 25–32, sketch the graphs of the given...Ch. 24 - Prob. 29RECh. 24 - Prob. 30RECh. 24 - Prob. 31RECh. 24 - Prob. 32RECh. 24 - Prob. 33RECh. 24 - Prob. 34RECh. 24 - Prob. 35RECh. 24 - Prob. 36RECh. 24 - Prob. 37RECh. 24 - Prob. 38RECh. 24 - Prob. 39RECh. 24 - Prob. 40RECh. 24 - Prob. 41RECh. 24 - Prob. 42RECh. 24 - Prob. 43RECh. 24 - Prob. 44RECh. 24 - Prob. 45RECh. 24 - Prob. 46RECh. 24 - Prob. 47RECh. 24 - Prob. 48RECh. 24 - Prob. 49RECh. 24 - Prob. 50RECh. 24 - Prob. 51RECh. 24 - Prob. 52RECh. 24 - In Exercises 49–94, solve the given problems.
53....Ch. 24 - Prob. 54RECh. 24 - Prob. 55RECh. 24 - Prob. 56RECh. 24 - The deflection y (in m) of a beam at a horizontal...Ch. 24 - Prob. 58RECh. 24 - Prob. 59RECh. 24 - Prob. 60RECh. 24 - Prob. 61RECh. 24 - Prob. 62RECh. 24 - In Fig. 24.75, the tension T supports the 40.0-N...Ch. 24 - Prob. 64RECh. 24 - Prob. 65RECh. 24 - Prob. 66RECh. 24 - An analysis of the power output P (in kW/m3) of a...Ch. 24 - The altitude h (in ft) of a certain rocket as a...Ch. 24 - Prob. 69RECh. 24 - Prob. 70RECh. 24 - Prob. 71RECh. 24 - Prob. 72RECh. 24 - Prob. 73RECh. 24 - A special insulation strip is to be sealed...Ch. 24 - Prob. 75RECh. 24 - Prob. 76RECh. 24 - Prob. 77RECh. 24 - Prob. 78RECh. 24 - Prob. 79RECh. 24 - Prob. 80RECh. 24 - Prob. 81RECh. 24 - Prob. 82RECh. 24 - Prob. 83RECh. 24 - Prob. 84RECh. 24 - Prob. 85RECh. 24 - Prob. 86RECh. 24 - Prob. 87RECh. 24 - Prob. 88RECh. 24 - Prob. 89RECh. 24 - Prob. 90RECh. 24 - Prob. 91RECh. 24 - Prob. 92RECh. 24 - Prob. 93RECh. 24 - Prob. 94RECh. 24 - Prob. 95RECh. 24 - Prob. 1PTCh. 24 - Prob. 2PTCh. 24 - Prob. 3PTCh. 24 - Prob. 4PTCh. 24 - Prob. 5PTCh. 24 - Prob. 6PTCh. 24 - Prob. 7PTCh. 24 - Prob. 8PTCh. 24 - Prob. 9PTCh. 24 - Prob. 10PT
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, subject and related others by exploring similar questions and additional content below.Similar questions
- Suppose the random variable X is normally distributed with mean 80 and standard deviation 16. Find following probabilities. Equation: P(85 ≤ X ≤ 102). Find the probability using a normal distribution table AND using ti-83 calculator. SHOW ALL STEPS PLEASE.arrow_forwardData set is Bachelor Degree's Conferred by Race and Ethnicity.arrow_forwardThe parametric equations of the function are given as x = 3cos 0 - sin³0 and y = 3sin 0 - cos³0. dy d2y Calculate and dx dx².arrow_forward
- 4. Vons, a large supermarket in Grover Beach, California, is con- sidering extending its store hours from 7:00 am to midnight, seven days a week, to 6:00 am to midnight. Discuss the sam- pling bias in the following sampling strategies:arrow_forward3. Natalie Min is an undergraduate in the Haas School of Busi- ness at Berkeley. She wishes to pursue an MBA from Berkeley and wants to know the profile of other students who are likely to apply to the Berkeley MBA program. In particular, she wants to know the GPA of students with whom she might be compet- ing. She randomly surveys 40 students from her accounting class for the analysis. Discuss in detail whether or not Natalie's analysis is based on a representative sample.arrow_forwardSee data attached. SoftBus Company sells PC equipment and customized software to small companies to help them manage their day-to-day business activities. Although SoftBus spends time with all customers to understand their needs, the customers are eventually on their own to use the equipment and software intelligently. To understand its customers better, SoftBus recently sent questionnaires to a large number of prospective customers. Key personnel—those who would be using the software—were asked to fill out the questionnaire. SoftBus received 82 usable responses, as shown in the file. You can assume that these employees represent a random sample of all of SoftBus's prospective customers. SoftBus believes it can afford to spend much less time with customers who own PCs and score at least 4 on PC Knowledge. Let's call these the "PC-savvy" customers. On the other hand, SoftBus believes it will have to spend a lot of time with customers who do not own a PC and score 2 or less on PC…arrow_forward
- See data attached. SoftBus Company sells PC equipment and customized software to small companies to help them manage their day-to-day business activities. Although SoftBus spends time with all customers to understand their needs, the customers are eventually on their own to use the equipment and software intelligently. To understand its customers better, SoftBus recently sent questionnaires to a large number of prospective customers. Key personnel—those who would be using the software—were asked to fill out the questionnaire. SoftBus received 82 usable responses, as shown in the file. You can assume that these employees represent a random sample of all of SoftBus's prospective customers. SoftBus believes it can afford to spend much less time with customers who own PCs and score at least 4 on PC Knowledge. Let's call these the "PC-savvy" customers. On the other hand, SoftBus believes it will have to spend a lot of time with customers who do not own a PC and score 2 or less on PC…arrow_forwardPlease show in mathematical form.arrow_forwardSolve the system :- (1-x) dux (1+x) 3x + yox you to -you -y sy + (1-1) 14 + (1 + x)y. EXTERarrow_forward
- 2. A Ferris wheel has its centre 10 m above the ground and a radius of 8 m. When in operation, it completes 5 revolutions every minute. a) Determine the equation of a sinusoidal function to represent the height of a rider, assuming the rider starts at the bottom of the Ferris wheel. b) Determine the height of the rider at 30 seconds.arrow_forwardPls help asap. Thank you!arrow_forward5. Solve algebraically 2 cos² x+5 sin x+1=0 on the interval 0≤x≤2π.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Discrete Mathematics and Its Applications ( 8th I...MathISBN:9781259676512Author:Kenneth H RosenPublisher:McGraw-Hill Education
Mathematics for Elementary Teachers with Activiti...MathISBN:9780134392790Author:Beckmann, SybillaPublisher:PEARSON
Thinking Mathematically (7th Edition)MathISBN:9780134683713Author:Robert F. BlitzerPublisher:PEARSON
Discrete Mathematics With ApplicationsMathISBN:9781337694193Author:EPP, Susanna S.Publisher:Cengage Learning,
Pathways To Math Literacy (looseleaf)MathISBN:9781259985607Author:David Sobecki Professor, Brian A. MercerPublisher:McGraw-Hill Education
Discrete Mathematics and Its Applications ( 8th I...
Math
ISBN:9781259676512
Author:Kenneth H Rosen
Publisher:McGraw-Hill Education
Mathematics for Elementary Teachers with Activiti...
Math
ISBN:9780134392790
Author:Beckmann, Sybilla
Publisher:PEARSON
Thinking Mathematically (7th Edition)
Math
ISBN:9780134683713
Author:Robert F. Blitzer
Publisher:PEARSON
Discrete Mathematics With Applications
Math
ISBN:9781337694193
Author:EPP, Susanna S.
Publisher:Cengage Learning,
Pathways To Math Literacy (looseleaf)
Math
ISBN:9781259985607
Author:David Sobecki Professor, Brian A. Mercer
Publisher:McGraw-Hill Education
Finding Local Maxima and Minima by Differentiation; Author: Professor Dave Explains;https://www.youtube.com/watch?v=pvLj1s7SOtk;License: Standard YouTube License, CC-BY