1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
steposvetlana [31]
3 years ago
12

4. Earth is in thermal equilibrium. This means that our planet is radiating away exactly as much energy as it is receiving from

the Sun. This "re-radiation" from the Earth is not visible because it its peak wavelength is in the infrared part of the spectrum. Even the coldest parts of the Earth are way above absolute zero, so every square meter of Earth’s surface is radiating this energy out to space. Using the same radius given in step 2 above, and the formula for the area of a sphere, calculate the surface area of the Earth.
Mathematics
2 answers:
Mumz [18]3 years ago
8 0

Answer: 5.098e14 (m)²

Step-by-step explanation:

Formula for surface area of a sphere = 4πr²

Therefore;

Total surface area of the earth is = 4πr²

Radius of the earth = (6371 km)²

= 4 x 3.14 x (6371 km)²

= 12.56 x (6,371,000 m)²

Total surface area of the earth is;

answer = 5.098e14 (m)²

lana [24]3 years ago
7 0

Answer:

5.099*10^14 m^2

Step-by-step explanation:

Earth is in thermal equilibrium. This means that our planet is radiating away exactly as much energy as it is receiving from the Sun. This "re-radiation" from the Earth is not visible because it its peak wavelength is in the infrared part of the spectrum. Even the coldest parts of the Earth are way above absolute zero, so every square meter of Earth’s surface is radiating this energy out to space. Using the same radius given in step 2 above, and the formula for the area of a sphere, calculate the surface area of the Earth.

(The radius of the Earth is 6,370,000 meters.)

The earth is spherical in shape , so we use the formula for finding the surface area of a sphere

Surface Area=4\pi r^{2}

S.A=4*3.14*6,370,000^2

S.A=4*pi*40576900000000

S.A=5.099*10^14m^2

Man occupies about one-eighth of the earth.

You might be interested in
Which statements are true about the rules of division? Check all that apply.
a_sh-v [17]

Answer:

1.The quotient of two negative integers is positive.

3.The quotient of two integers with the same sign is positive.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Hiii this due today can you draw a digram for 5 times 20 please THIS IS DUE TODAY THANK You​
nekit [7.7K]

Answer:

draw the diagram and multiply 5x20

3 0
2 years ago
Plz help!!!!!
lana66690 [7]

Answer:

111 miles

Step-by-step explanation:

Can you mark me as Brainliest

8 0
2 years ago
Read 2 more answers
Which equation describes a line that has a slope of 4/5 and a y- intercept of 2/5
Sindrei [870]

Answer:

Step-by-step explanation:

(0,2\5)

Slope=4\5

X(4\5)=y-2\5

Y=(4\5)x +2\5

5 0
2 years ago
Determine whether the statement is true or false. Justify your answers.
marusya05 [52]

Answer:

The graph of y = f(-x) is a reflection of the graph of y = f(x) in the x-axis. ⇒ False

The graph of y = -f(x) is a reflection of the graph of y = f(x) in the y-axis. ⇒ False

Step-by-step explanation:

<em>Let us explain the reflection about the axes</em>

  • If a graph is reflected about the x-axis, then the y-coordinates of all points on it will opposite in sign

Ex: if a point (2, -3) is on the graph of f(x), and f(x) is reflected about the x-axis, then the point will change to (2, 3)

  • That means reflection about the x-axis change the sign of y
  • y = f(x) → reflection about x-axis → y = -f(x)

  • If a graph is reflected about the y-axis, then the x-coordinates of all points on it will opposite in sign

Ex: if a point (-2, -5) is on the graph of f(x), and f(x) is reflected about the y-axis, then the point will change to (2, -5)

  • That means reflection about the y-axis change the sign of x
  • y = f(x) → reflection about y-axis → y = f(-x)

<em>Now let us answer our question</em>

The graph of y = f(-x) is a reflection of the graph of y = f(x) in the x-axis.

It is False because reflection about x-axis change sign of y

The graph of y = -f(x) is a reflection of the graph of y = f(x) in the x-axis

The graph of y = -f(x) is a reflection of the graph of y = f(x) in the y-axis.

It is False because reflection about y-axis change sign of x

The graph of y = f(-x) is a reflection of the graph of y = f(x) in the y-axis

7 0
3 years ago
Other questions:
  • The table shows the height of pea plants in centimeters after 6 weeks of growth. Each plant started at a height of 5 centimeters
    8·2 answers
  • Suppose that w and t vary inversely and that t=1/5 when w=4. write a function that models the inverse variation and find t when
    14·1 answer
  • Why doesn't (12+6) divided by 2 and 12+6 divided by 2 have the same answer????
    10·2 answers
  • The product of 3 and a number is the same as 10 less than twice the number
    12·1 answer
  • What is the greatest common factor of 6 and 20
    15·2 answers
  • The longest side of an acute isosceles triangle is 8 centimeters. Rounded to the nearest tenth , what is the smallest possible l
    10·1 answer
  • I NEED THIS ASAP!!!!
    13·1 answer
  • Write an equation in slope intercept form that represents the line shown?
    12·1 answer
  • Julia decides to make 5 batches of salad dressing. How much sugar should she use?
    11·1 answer
  • HELPP A spinner is divided into five colored sections that are not of equal size: red, blue,
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!