# The shape of the earth is: a perfect sphere a revolving cone an imperfect sphere a flat,

###### Question:

## Answers

It is an imperfect sphere

1.) TRUE

7.) I believe it is FALSE

that's all I got for now

196,961,284

3.5

Step-by-step explanation:

4pi r-squared=

4xpix3959x3959=

196,961,284

196961819/55734819=

3.5

5502.0 kg m⁻³ for Earth, 2702 kg m⁻³ for the other planet

Explanation:

Here are the equations that you will need to answer questions of this kind.

The Gravitational Constant,

G = 6.6743e-11 m³ kg⁻¹ sec⁻²

To find mass (in kilograms)

M(R,g) = gR²/G

M(R,v) = v²R/(2G)

M(R,ρ) = 4πρR³/3

M(g,v) = v⁴/(4gG)

M(g,ρ) = 9g³/(16π²ρ²G³)

M(v,ρ) = v³ √[3/(32πρG³)]

To find radius (in meters)

R(M,g) = √(GM/g)

R(M,v) = 2GM/v²

R(M,ρ) = ∛[3M/(4πρ)]

R(g,v) = v²/(2g)

R(g,ρ) = 3g/(4πρG)

R(v,ρ) = v √[3/(8πρG)]

To find surface gravity (in m sec⁻²)

g(M,R) = GM/R²

g(M,v) = v⁴/(4GM)

g(M,ρ) = G ∛(16π²ρ²M/9)

g(R,v) = v²/(2R)

g(R,ρ) = 4πGρR/3

g(v,ρ) = v √[(2πρG)/3]

To find escape speed from surface (in m sec⁻¹)

v(M,R) = √(2GM/R)

v(M,g) = ∜(4GMg)

v(M,ρ) = (32πρG³M²/3)^⅙

v(R,g) = √(2gR)

v(R,ρ) = R √(8πGρ/3)

v(g,ρ) = g √[3/(2πρG)]

To find average density (in kg m⁻³)

ρ(M,R) = 3M/(4πR³)

ρ(M,g) = [3/(4π)] √[g³/(G³M)]

ρ(M,v) = 3v⁶/(32πG³M²)

ρ(R,g) = 3g/(4πGR)

ρ(R,v) = 3v²/(8πGR²)

ρ(g,v) = 3g²/(2πGv²)

With your specific question, you want the equation

ρ(R,g) = 3g/(4πGR)

If R=6.371e+6 meters and g=9.80 m sec⁻², then ρ=5502 kg m⁻³

If R=4.8e+7 meters and g=36.26 m sec⁻², then ρ=2702 kg m⁻³

In my humble opinion . . . . .

1). true

2). a poor question, fishing for "False"

3). true

4). False

5). poor question, fishing for "true"

6). false

7). false

8). false (not totally sure)

9). false

10). true

11). true

12). 600m

13). 0.05 L

14). 400 g

15). kilogram

16). folding

17). solar system

18). matter

19). free-fall

20). smallpox

21). (idk)

22). the continents were once one large land mass

23). the same as her mass on Earth, or anywhere else

24). (idk)

25). magma is one, idk the other

26). a force

27). small

28). formed slowly

29). (idk)

30). distance

31). by collision with a high-speed particle

32). I agree that there is still habitable land remaining on Earth. But that's not a "therefore" that follows from the first statement.

No article...maybe...

Explanation:

The Earth is an oblate spheroid, bulging out slightly at the poles

Explanation:

Earth's surface structure is in the form of geoid of three-dimensional structure. As the earth's topographic features are associated with landform and water bodies. Hence earth is not a complete sphere nor a perfect sphere its a form of oval-shaped epllicics and thus has an ellipsoid revolution and a tilt around the sun on its axis. The bulge at the equator is a product of the spinning of the earth and modern geodesy takes this ellipsoidal as a spheroid.B. is the answer to the question.

C i think, it makes the most sense

False, the earth is not perfectly round

Hope this helps :D

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