APPLIED CALC (LL) W/CODE
APPLIED CALC (LL) W/CODE
6th Edition
ISBN: 9781119499909
Author: Hughes-Hallett
Publisher: WILEY
bartleby

Concept explainers

Differential Equations
Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differentia…
bartleby

Videos

Question
Book Icon
Chapter 1.4, Problem 16P
To determine

(a)

To find the park’s total revenue R ( n ) as a function of the number of rides, n, taken.

To determine

(b)

To find R (2) and R (8) and interpret the answers in terms of amusement park fees.

Expert Solution & Answer
Check Mark

Want to see the full answer?

Check out a sample textbook solution
Blurred answer
Previous
Chapter 1.4, Problem 15P
Next
Chapter 1.4, Problem 17P

Chapter 1 Solutions

APPLIED CALC (LL) W/CODE

Ch. 1.1 - Prob. 1PCh. 1.1 - Prob. 2PCh. 1.1 - Prob. 3PCh. 1.1 - Prob. 4PCh. 1.1 - Prob. 5PCh. 1.1 - Prob. 6PCh. 1.1 - Prob. 7PCh. 1.1 - Prob. 8PCh. 1.1 - Prob. 9PCh. 1.1 - Prob. 10P
Ch. 1.1 - Prob. 11PCh. 1.1 - Prob. 12PCh. 1.1 - Prob. 13PCh. 1.1 - Prob. 14PCh. 1.1 - Prob. 15PCh. 1.1 - Prob. 16PCh. 1.1 - Prob. 17PCh. 1.1 - Prob. 18PCh. 1.1 - Prob. 19PCh. 1.1 - Prob. 20PCh. 1.1 - Prob. 21PCh. 1.1 - Prob. 22PCh. 1.1 - Prob. 23PCh. 1.1 - Prob. 24PCh. 1.1 - Prob. 25PCh. 1.1 - Prob. 26PCh. 1.1 - Prob. 27PCh. 1.1 - Prob. 28PCh. 1.1 - Prob. 29PCh. 1.1 - Prob. 30PCh. 1.1 - Prob. 31PCh. 1.1 - Prob. 32PCh. 1.1 - Prob. 33PCh. 1.1 - Prob. 34PCh. 1.1 - Prob. 35PCh. 1.1 - Prob. 36PCh. 1.1 - Prob. 37PCh. 1.1 - Prob. 38PCh. 1.1 - Prob. 39PCh. 1.1 - Prob. 40PCh. 1.2 - Prob. 1PCh. 1.2 - Prob. 2PCh. 1.2 - Prob. 3PCh. 1.2 - Prob. 4PCh. 1.2 - Prob. 5PCh. 1.2 - Prob. 6PCh. 1.2 - Prob. 7PCh. 1.2 - Prob. 8PCh. 1.2 - Prob. 9PCh. 1.2 - Prob. 10PCh. 1.2 - Prob. 11PCh. 1.2 - Prob. 12PCh. 1.2 - Prob. 13PCh. 1.2 - Prob. 14PCh. 1.2 - Prob. 15PCh. 1.2 - Prob. 16PCh. 1.2 - Prob. 17PCh. 1.2 - Prob. 18PCh. 1.2 - Prob. 19PCh. 1.2 - Prob. 20PCh. 1.2 - Prob. 21PCh. 1.2 - Prob. 22PCh. 1.2 - Prob. 23PCh. 1.2 - Prob. 24PCh. 1.2 - Prob. 25PCh. 1.2 - Prob. 26PCh. 1.2 - Prob. 27PCh. 1.2 - Prob. 28PCh. 1.2 - Prob. 29PCh. 1.2 - Prob. 30PCh. 1.2 - Prob. 31PCh. 1.2 - Prob. 32PCh. 1.2 - Prob. 33PCh. 1.2 - Prob. 34PCh. 1.2 - Prob. 35PCh. 1.2 - Prob. 36PCh. 1.2 - Prob. 37PCh. 1.2 - Prob. 38PCh. 1.2 - Prob. 39PCh. 1.2 - Prob. 40PCh. 1.2 - Prob. 41PCh. 1.2 - Prob. 42PCh. 1.2 - Prob. 43PCh. 1.3 - Prob. 1PCh. 1.3 - Prob. 2PCh. 1.3 - Prob. 3PCh. 1.3 - Prob. 4PCh. 1.3 - Prob. 5PCh. 1.3 - Prob. 6PCh. 1.3 - Prob. 7PCh. 1.3 - Prob. 8PCh. 1.3 - Prob. 9PCh. 1.3 - Prob. 10PCh. 1.3 - Prob. 11PCh. 1.3 - Prob. 12PCh. 1.3 - Prob. 13PCh. 1.3 - Prob. 14PCh. 1.3 - Prob. 15PCh. 1.3 - Prob. 16PCh. 1.3 - Prob. 17PCh. 1.3 - Prob. 18PCh. 1.3 - Prob. 19PCh. 1.3 - Prob. 20PCh. 1.3 - Prob. 21PCh. 1.3 - Prob. 22PCh. 1.3 - Prob. 23PCh. 1.3 - Prob. 24PCh. 1.3 - Prob. 25PCh. 1.3 - Prob. 26PCh. 1.3 - Prob. 27PCh. 1.3 - Prob. 28PCh. 1.3 - Prob. 29PCh. 1.3 - Prob. 30PCh. 1.3 - Prob. 31PCh. 1.3 - Prob. 32PCh. 1.3 - Prob. 33PCh. 1.3 - Prob. 34PCh. 1.3 - Prob. 35PCh. 1.3 - Prob. 36PCh. 1.3 - Prob. 37PCh. 1.3 - Prob. 38PCh. 1.3 - Prob. 39PCh. 1.3 - Prob. 40PCh. 1.3 - Prob. 41PCh. 1.3 - Prob. 42PCh. 1.3 - Prob. 43PCh. 1.3 - Prob. 44PCh. 1.3 - Prob. 45PCh. 1.3 - Prob. 46PCh. 1.3 - Prob. 47PCh. 1.3 - Prob. 48PCh. 1.3 - Prob. 49PCh. 1.3 - Prob. 50PCh. 1.3 - Prob. 51PCh. 1.3 - Prob. 52PCh. 1.3 - Prob. 53PCh. 1.3 - Prob. 54PCh. 1.3 - Prob. 55PCh. 1.3 - Prob. 56PCh. 1.3 - Prob. 57PCh. 1.3 - Prob. 58PCh. 1.3 - Prob. 59PCh. 1.3 - Prob. 60PCh. 1.3 - Prob. 61PCh. 1.4 - Prob. 1PCh. 1.4 - Prob. 2PCh. 1.4 - Prob. 3PCh. 1.4 - Prob. 4PCh. 1.4 - Prob. 5PCh. 1.4 - Prob. 6PCh. 1.4 - Prob. 7PCh. 1.4 - Prob. 8PCh. 1.4 - Prob. 9PCh. 1.4 - Prob. 10PCh. 1.4 - Prob. 11PCh. 1.4 - Prob. 12PCh. 1.4 - Prob. 13PCh. 1.4 - Prob. 14PCh. 1.4 - Prob. 15PCh. 1.4 - Prob. 16PCh. 1.4 - Prob. 17PCh. 1.4 - Prob. 18PCh. 1.4 - Prob. 19PCh. 1.4 - Prob. 20PCh. 1.4 - Prob. 21PCh. 1.4 - Prob. 22PCh. 1.4 - Prob. 23PCh. 1.4 - Prob. 24PCh. 1.4 - Prob. 25PCh. 1.4 - Prob. 26PCh. 1.4 - Prob. 27PCh. 1.4 - Prob. 28PCh. 1.4 - Prob. 29PCh. 1.4 - Prob. 30PCh. 1.4 - Prob. 31PCh. 1.4 - Prob. 32PCh. 1.4 - Prob. 33PCh. 1.4 - Prob. 34PCh. 1.4 - Prob. 35PCh. 1.4 - Prob. 36PCh. 1.4 - Prob. 37PCh. 1.4 - Prob. 38PCh. 1.4 - Prob. 39PCh. 1.4 - Prob. 40PCh. 1.4 - Prob. 41PCh. 1.4 - Prob. 42PCh. 1.4 - Prob. 43PCh. 1.4 - Prob. 44PCh. 1.4 - Prob. 45PCh. 1.5 - Prob. 1PCh. 1.5 - Prob. 2PCh. 1.5 - Prob. 3PCh. 1.5 - Prob. 4PCh. 1.5 - Prob. 5PCh. 1.5 - Prob. 6PCh. 1.5 - Prob. 7PCh. 1.5 - Prob. 8PCh. 1.5 - Prob. 9PCh. 1.5 - Prob. 10PCh. 1.5 - Prob. 11PCh. 1.5 - Prob. 12PCh. 1.5 - Prob. 13PCh. 1.5 - Prob. 14PCh. 1.5 - Prob. 15PCh. 1.5 - Prob. 16PCh. 1.5 - Prob. 17PCh. 1.5 - Prob. 18PCh. 1.5 - Prob. 19PCh. 1.5 - Prob. 20PCh. 1.5 - Prob. 21PCh. 1.5 - Prob. 22PCh. 1.5 - Prob. 23PCh. 1.5 - Prob. 24PCh. 1.5 - Prob. 25PCh. 1.5 - Prob. 26PCh. 1.5 - Prob. 27PCh. 1.5 - Prob. 28PCh. 1.5 - Prob. 29PCh. 1.5 - Prob. 30PCh. 1.5 - Prob. 31PCh. 1.5 - Prob. 32PCh. 1.5 - Prob. 33PCh. 1.5 - Prob. 34PCh. 1.5 - Prob. 35PCh. 1.5 - Prob. 36PCh. 1.5 - Prob. 37PCh. 1.5 - Prob. 38PCh. 1.5 - Prob. 39PCh. 1.5 - Prob. 40PCh. 1.5 - Prob. 41PCh. 1.5 - Prob. 42PCh. 1.5 - Prob. 43PCh. 1.5 - Prob. 44PCh. 1.5 - Prob. 45PCh. 1.6 - Prob. 1PCh. 1.6 - Prob. 2PCh. 1.6 - Prob. 3PCh. 1.6 - Prob. 4PCh. 1.6 - Prob. 5PCh. 1.6 - Prob. 6PCh. 1.6 - Prob. 7PCh. 1.6 - Prob. 8PCh. 1.6 - Prob. 9PCh. 1.6 - Prob. 10PCh. 1.6 - Prob. 11PCh. 1.6 - Prob. 12PCh. 1.6 - Prob. 13PCh. 1.6 - Prob. 14PCh. 1.6 - Prob. 15PCh. 1.6 - Prob. 16PCh. 1.6 - Prob. 17PCh. 1.6 - Prob. 18PCh. 1.6 - Prob. 19PCh. 1.6 - Prob. 20PCh. 1.6 - Prob. 21PCh. 1.6 - Prob. 22PCh. 1.6 - Prob. 23PCh. 1.6 - Prob. 24PCh. 1.6 - Prob. 25PCh. 1.6 - Prob. 26PCh. 1.6 - Prob. 27PCh. 1.6 - Prob. 28PCh. 1.6 - Prob. 29PCh. 1.6 - Prob. 30PCh. 1.6 - Prob. 31PCh. 1.6 - Prob. 32PCh. 1.6 - Prob. 33PCh. 1.6 - Prob. 34PCh. 1.6 - Prob. 35PCh. 1.6 - Prob. 36PCh. 1.6 - Prob. 37PCh. 1.6 - Prob. 38PCh. 1.6 - Prob. 39PCh. 1.6 - Prob. 40PCh. 1.6 - Prob. 41PCh. 1.6 - Prob. 42PCh. 1.6 - Prob. 43PCh. 1.6 - Prob. 44PCh. 1.6 - Prob. 45PCh. 1.6 - Prob. 46PCh. 1.6 - Prob. 47PCh. 1.6 - Prob. 48PCh. 1.6 - Prob. 49PCh. 1.6 - Prob. 50PCh. 1.6 - Prob. 51PCh. 1.6 - Prob. 52PCh. 1.6 - Prob. 53PCh. 1.7 - Prob. 1PCh. 1.7 - Prob. 2PCh. 1.7 - Prob. 3PCh. 1.7 - Prob. 4PCh. 1.7 - Prob. 5PCh. 1.7 - Prob. 6PCh. 1.7 - Prob. 7PCh. 1.7 - Prob. 8PCh. 1.7 - Prob. 9PCh. 1.7 - Prob. 10PCh. 1.7 - Prob. 11PCh. 1.7 - Prob. 12PCh. 1.7 - Prob. 13PCh. 1.7 - Prob. 14PCh. 1.7 - Prob. 15PCh. 1.7 - Prob. 16PCh. 1.7 - Prob. 17PCh. 1.7 - Prob. 18PCh. 1.7 - Prob. 19PCh. 1.7 - Prob. 20PCh. 1.7 - Prob. 21PCh. 1.7 - Prob. 22PCh. 1.7 - Prob. 23PCh. 1.7 - Prob. 24PCh. 1.7 - Prob. 25PCh. 1.7 - Prob. 26PCh. 1.7 - Prob. 27PCh. 1.7 - Prob. 28PCh. 1.7 - Prob. 29PCh. 1.7 - Prob. 30PCh. 1.7 - Prob. 31PCh. 1.7 - Prob. 32PCh. 1.7 - Prob. 33PCh. 1.7 - Prob. 34PCh. 1.7 - Prob. 35PCh. 1.7 - Prob. 36PCh. 1.7 - Prob. 37PCh. 1.7 - Prob. 38PCh. 1.7 - Prob. 39PCh. 1.7 - Prob. 40PCh. 1.7 - Prob. 41PCh. 1.7 - Prob. 42PCh. 1.7 - Prob. 43PCh. 1.7 - Prob. 44PCh. 1.7 - Prob. 45PCh. 1.7 - Prob. 46PCh. 1.7 - Prob. 47PCh. 1.7 - Prob. 48PCh. 1.7 - Prob. 49PCh. 1.7 - Prob. 50PCh. 1.7 - Prob. 51PCh. 1.7 - Prob. 52PCh. 1.7 - Prob. 53PCh. 1.7 - Prob. 54PCh. 1.8 - Prob. 1PCh. 1.8 - Prob. 2PCh. 1.8 - Prob. 3PCh. 1.8 - Prob. 4PCh. 1.8 - Prob. 5PCh. 1.8 - Prob. 6PCh. 1.8 - Prob. 7PCh. 1.8 - Prob. 8PCh. 1.8 - Prob. 9PCh. 1.8 - Prob. 10PCh. 1.8 - Prob. 11PCh. 1.8 - Prob. 12PCh. 1.8 - Prob. 13PCh. 1.8 - Prob. 14PCh. 1.8 - Prob. 15PCh. 1.8 - Prob. 16PCh. 1.8 - Prob. 17PCh. 1.8 - Prob. 18PCh. 1.8 - Prob. 19PCh. 1.8 - Prob. 20PCh. 1.8 - Prob. 21PCh. 1.8 - Prob. 22PCh. 1.8 - Prob. 23PCh. 1.8 - Prob. 24PCh. 1.8 - Prob. 25PCh. 1.8 - Prob. 26PCh. 1.8 - Prob. 27PCh. 1.8 - Prob. 28PCh. 1.8 - Prob. 29PCh. 1.8 - Prob. 30PCh. 1.8 - Prob. 31PCh. 1.8 - Prob. 32PCh. 1.8 - Prob. 33PCh. 1.8 - Prob. 34PCh. 1.8 - Prob. 35PCh. 1.8 - Prob. 36PCh. 1.8 - Prob. 37PCh. 1.8 - Prob. 38PCh. 1.8 - Prob. 39PCh. 1.8 - Prob. 40PCh. 1.8 - Prob. 41PCh. 1.8 - Prob. 42PCh. 1.8 - Prob. 43PCh. 1.8 - Prob. 44PCh. 1.8 - Prob. 45PCh. 1.8 - Prob. 46PCh. 1.8 - Prob. 47PCh. 1.8 - Prob. 48PCh. 1.8 - Prob. 49PCh. 1.8 - Prob. 50PCh. 1.8 - Prob. 51PCh. 1.8 - Prob. 52PCh. 1.8 - Prob. 53PCh. 1.8 - Prob. 54PCh. 1.8 - Prob. 55PCh. 1.8 - Prob. 56PCh. 1.8 - Prob. 57PCh. 1.8 - Prob. 58PCh. 1.8 - Prob. 59PCh. 1.9 - Prob. 1PCh. 1.9 - Prob. 2PCh. 1.9 - Prob. 3PCh. 1.9 - Prob. 4PCh. 1.9 - Prob. 5PCh. 1.9 - Prob. 6PCh. 1.9 - Prob. 7PCh. 1.9 - Prob. 8PCh. 1.9 - Prob. 9PCh. 1.9 - Prob. 10PCh. 1.9 - Prob. 11PCh. 1.9 - Prob. 12PCh. 1.9 - Prob. 13PCh. 1.9 - Prob. 14PCh. 1.9 - Prob. 15PCh. 1.9 - Prob. 16PCh. 1.9 - Prob. 17PCh. 1.9 - Prob. 18PCh. 1.9 - Prob. 19PCh. 1.9 - Prob. 20PCh. 1.9 - Prob. 21PCh. 1.9 - Prob. 22PCh. 1.9 - Prob. 23PCh. 1.9 - Prob. 24PCh. 1.9 - Prob. 25PCh. 1.9 - Prob. 26PCh. 1.9 - Prob. 27PCh. 1.9 - Prob. 28PCh. 1.9 - Prob. 29PCh. 1.10 - Prob. 1PCh. 1.10 - Prob. 2PCh. 1.10 - Prob. 3PCh. 1.10 - Prob. 4PCh. 1.10 - Prob. 5PCh. 1.10 - Prob. 6PCh. 1.10 - Prob. 7PCh. 1.10 - Prob. 8PCh. 1.10 - Prob. 9PCh. 1.10 - Prob. 10PCh. 1.10 - Prob. 11PCh. 1.10 - Prob. 12PCh. 1.10 - Prob. 13PCh. 1.10 - Prob. 14PCh. 1.10 - Prob. 15PCh. 1.10 - Prob. 16PCh. 1.10 - Prob. 17PCh. 1.10 - Prob. 18PCh. 1.10 - Prob. 19PCh. 1.10 - Prob. 20PCh. 1.10 - Prob. 21PCh. 1.10 - Prob. 22PCh. 1.10 - Prob. 23PCh. 1.10 - Prob. 24PCh. 1.10 - Prob. 25PCh. 1.10 - Prob. 26PCh. 1.10 - Prob. 27PCh. 1.10 - Prob. 28PCh. 1.10 - Prob. 29PCh. 1.10 - Prob. 30PCh. 1.10 - Prob. 31PCh. 1.10 - Prob. 32PCh. 1.10 - Prob. 33PCh. 1.10 - Prob. 34PCh. 1.10 - Prob. 35PCh. 1.10 - Prob. 36PCh. 1.10 - Prob. 37PCh. 1 - Prob. 1SYUCh. 1 - Prob. 2SYUCh. 1 - Prob. 3SYUCh. 1 - Prob. 4SYUCh. 1 - Prob. 5SYUCh. 1 - Prob. 6SYUCh. 1 - Prob. 7SYUCh. 1 - Prob. 8SYUCh. 1 - Prob. 9SYUCh. 1 - Prob. 10SYUCh. 1 - Prob. 11SYUCh. 1 - Prob. 12SYUCh. 1 - Prob. 13SYUCh. 1 - Prob. 14SYUCh. 1 - Prob. 15SYUCh. 1 - Prob. 16SYUCh. 1 - Prob. 17SYUCh. 1 - Prob. 18SYUCh. 1 - Prob. 19SYUCh. 1 - Prob. 20SYUCh. 1 - Prob. 21SYUCh. 1 - Prob. 22SYUCh. 1 - Prob. 23SYUCh. 1 - Prob. 24SYUCh. 1 - Prob. 25SYUCh. 1 - Prob. 26SYUCh. 1 - Prob. 27SYUCh. 1 - Prob. 28SYUCh. 1 - Prob. 29SYUCh. 1 - Prob. 30SYUCh. 1 - Prob. 31SYUCh. 1 - Prob. 32SYUCh. 1 - Prob. 33SYUCh. 1 - Prob. 34SYUCh. 1 - Prob. 35SYUCh. 1 - Prob. 36SYUCh. 1 - Prob. 37SYUCh. 1 - Prob. 38SYUCh. 1 - Prob. 39SYUCh. 1 - Prob. 40SYUCh. 1 - Prob. 41SYUCh. 1 - Prob. 42SYUCh. 1 - Prob. 43SYUCh. 1 - Prob. 44SYUCh. 1 - Prob. 45SYUCh. 1 - Prob. 46SYUCh. 1 - Prob. 47SYUCh. 1 - Prob. 48SYUCh. 1 - Prob. 49SYUCh. 1 - Prob. 50SYUCh. 1 - Prob. 51SYUCh. 1 - Prob. 52SYUCh. 1 - Prob. 53SYUCh. 1 - Prob. 54SYUCh. 1 - Prob. 55SYUCh. 1 - Prob. 56SYUCh. 1 - Prob. 57SYUCh. 1 - Prob. 58SYUCh. 1 - Prob. 59SYUCh. 1 - Prob. 60SYUCh. 1 - Prob. 61SYUCh. 1 - Prob. 62SYUCh. 1 - Prob. 63SYUCh. 1 - Prob. 64SYUCh. 1 - Prob. 65SYUCh. 1 - Prob. 66SYUCh. 1 - Prob. 67SYUCh. 1 - Prob. 68SYUCh. 1 - Prob. 69SYUCh. 1 - Prob. 70SYUCh. 1 - Prob. 71SYUCh. 1 - Prob. 72SYUCh. 1 - Prob. 73SYUCh. 1 - Prob. 74SYUCh. 1 - Prob. 75SYUCh. 1 - Prob. 76SYUCh. 1 - Prob. 77SYUCh. 1 - Prob. 78SYUCh. 1 - Prob. 79SYUCh. 1 - Prob. 80SYUCh. 1 - Prob. 81SYUCh. 1 - Prob. 82SYUCh. 1 - Prob. 83SYUCh. 1 - Prob. 84SYUCh. 1 - Prob. 85SYUCh. 1 - Prob. 86SYUCh. 1 - Prob. 87SYUCh. 1 - Prob. 88SYUCh. 1 - Prob. 89SYUCh. 1 - Prob. 90SYUCh. 1 - Prob. 91SYUCh. 1 - Prob. 92SYUCh. 1 - Prob. 93SYUCh. 1 - Prob. 94SYUCh. 1 - Prob. 95SYUCh. 1 - Prob. 96SYUCh. 1 - Prob. 97SYUCh. 1 - Prob. 98SYUCh. 1 - Prob. 99SYUCh. 1 - Prob. 100SYUCh. 1 - Prob. 101SYUCh. 1 - Prob. 102SYUCh. 1 - Prob. 103SYUCh. 1 - Prob. 104SYUCh. 1 - Prob. 105SYU
Knowledge Booster
Background pattern image
Calculus
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Text book image
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
Text book image
Algebra for College Students
Algebra
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Cengage Learning
Text book image
College Algebra
Algebra
ISBN:9781938168383
Author:Jay Abramson
Publisher:OpenStax
Text book image
College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning
Text book image
Intermediate Algebra
Algebra
ISBN:9780998625720
Author:Lynn Marecek
Publisher:OpenStax College
Text book image
Trigonometry (MindTap Course List)
Trigonometry
ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
Publisher:Cengage Learning
SEE MORE TEXTBOOKS
01 - What Is A Differential Equation in Calculus? Learn to Solve Ordinary Differential Equations.; Author: Math and Science;https://www.youtube.com/watch?v=K80YEHQpx9g;License: Standard YouTube License, CC-BY
Higher Order Differential Equation with constant coefficient (GATE) (Part 1) l GATE 2018; Author: GATE Lectures by Dishank;https://www.youtube.com/watch?v=ODxP7BbqAjA;License: Standard YouTube License, CC-BY
Solution of Differential Equations and Initial Value Problems; Author: Jefril Amboy;https://www.youtube.com/watch?v=Q68sk7XS-dc;License: Standard YouTube License, CC-BY