Question

Draw the shape of region D limited by the xy=1 curve, y=x and x=e lines. Calculate the mass of the plate with density σ(x,y)=xy placed on this region.

199

likes
995 views

Answer to a math question Draw the shape of region D limited by the xy=1 curve, y=x and x=e lines. Calculate the mass of the plate with density σ(x,y)=xy placed on this region.

Expert avatar
Brice
4.8
113 Answers
Verilen eğrilerin kesiştiği noktaları bulmak için;
1. y=x doğrusu ile xy=1 eğrisini çözelim.
2. x=e doğrusu ile xy=1 eğrisini çözelim.

Noktaları bulduktan sonra, bu üç doğru arasında kalan bölgenin şeklini çizeceğiz.

1. y=x doğrusu ile xy=1 eğrisini çözelim:
y=x \quad ve \quad xy=1 eşitlerini birbirine eşitleyerek çözelim:
x\cdot x = 1 \Rightarrow x^2 = 1 \Rightarrow x = 1
x = 1 değerini y=x doğrusuna koyarsak, y=1 olur.
Bu durumda kesişim noktası (1, 1) olur.

2. x=e doğrusu ile xy=1 eğrisini çözelim:
x=e \quad ve \quad xy=1 eşitlerini birbirine eşitleyerek çözelim:
e\cdot y = 1
y = \frac{1}{e}

Bu durumda kesişim noktası (e, \frac{1}{e}) olur.

Şimdi bu üç noktayı birbirleriyle birleştirerek, verilen bölgenin şeklini çizelim:
- (1, 1) noktası y=x doğrusu ve xy=1 eğrisiyle,
- (e, \frac{1}{e}) noktası x=e doğrusu ve xy=1 eğrisiyle,
- (e, \frac{1}{e}) ve (1, 1) noktaları y=x doğrusu ile birleştirilerek oluşturulur.

Şimdi bu bölgenin alanını hesaplayacağız. Bölge, bir üçgen şeklinde olduğundan, alanını bulmak için taban uzunluğunu ve yüksekliği hesaplayacağız:
Taban uzunluğu: e - 1
Yükseklik: \frac{1}{e} - 1

Bu durumda, bölgenin alanı:
A = \frac{1}{2} \cdot \text{Taban uzunluğu} \cdot \text{Yükseklik} = \frac{1}{2} \cdot (e - 1) \cdot \left(\frac{1}{e} - 1 \right)

Şimdi bu bölge üzerine yerleştirilen \sigma(x,y)=xy yoğunluklu levhanın kütlesini hesaplayalım. Bölgenin alanını kullanarak bu işlemi gerçekleştireceğiz:
\text{Kütle} = \iint_D \sigma(x,y) \, dA = \iint_D xy \, dA
\text{Kütle} = \int_1^e \int_1^\frac{1}{x} xy \, dydx

Yukarıdaki denklemi çözerek kütleyi hesaplayın.

\textbf{Yanıt:}
\text{Bölgenin Alanı: } A = \frac{1}{2} \cdot (e - 1) \cdot \left(\frac{1}{e} - 1 \right)
\text{Levhanın Kütle: } \text{Kütle} = \int_1^e \int_1^\frac{1}{x} xy \, dydx

Frequently asked questions (FAQs)
What is the measure, in degrees, of the acute angle formed by the hands of a clock at 5:30?
+
What is the formula to find the area of a regular hexagon with a side length of 's'?
+
What is the value of x when solving the equation 5x^2 + 3x - 7 = 0 using the quadratic formula?
+
New questions in Mathematics
One contestant on a game show has 1,500 points and another contestant has -250 points. What is the difference between the scores of the contestants?
QUESTION l. An investigation has been carried out in a region to know the perception of "citizen insecurity" of its inhabitants. 1,270 people in the region were interviewed, of which 27.1% responded that it was a "serious" problem. Knowing that this opinion was previously held by 25.3% of the population of that region, we want to know if said opinion has changed significantly for a confidence level of 97.2%. Taking this statement into account, the following is requested: a) Critical value of the contrast statistic. b) Solve the hypothesis test and indicate what conclusion we can reach. c) P-value of contrast.
A person who weighs 200 pounds on earth would weigh about 32 pounds on the moon. Find the weight of a person on earth who would weigh 15 pounds on the moon.
Using the integration by parts method, calculate the integral of [x².ln(1/x)]dx: x 4 /4 x³/6 x 4 /8 x³/3 x 4 /6
The bus one way of the road which is 10km is heading with speed of 20km/h ,then the bus the other 10km is heading with speed of 60km/h. The middle speed of the road is it equal with arithmetic speed of the v1 and v2 ?
9b^2-6b-5
-0.15/32.6
4. Show that if n is any integer, then n^2 3n 5 is an odd integer
At the dance there are 150 boys the rest are girls. If 65% are girls what is the total amount in the room
The grading on a $159,775 house comes to $3974.75. What percent of the total cost is this? (Express your answer to the nearest hundredth percent.)
How to factorise 5y^2 -7y -52
Consider mixing 150 ml, 0.1M, HCI with 100 ml, 0.2M, KOH solution. Determine the pH of final solution.
Solve the following 9x - 9 - 6x = 5 + 8x - 9
Convert (324)𝑓𝑖𝑣𝑒 into base-ten
Recall that with base- ten blocks, 1 long = 10 units, 1flat = 10 long, and a block = 1 unit. Then what number does 5 flat, 17long and 5 units represent represent ?
The perimeter of a rectangular rug is 42 feet. The width is 9 feet. What is the length?
Define excel and why we use it?
23,456 + 3,451
The car with an irresponsible driver starts to brake when it goes through a red light. When passing the traffic light, he does so at a speed of 115 kph in the right lane. Further ahead, 70 meters from the traffic light, a child is crossing the street and falls. If the effect of the car's brakes is equivalent to a deceleration of magnitude 5.7m/s². Is the child hit by the car or not? How far from the traffic light does the car stop?
Construct a set of six pieces of data with​ mean, median, and midrange of 67 and where no two pieces of data are the same.