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3 years ago

Which statements about Earth’s core help explain Earth’s magnetic field? Select three options.

Physics

2 answers:

uysha [10]3 years ago

6 0

the inner core is solid. the outer core is liquid and moving. Earth's core is composed of iron and nickel

Evgen [1.6K]3 years ago

5 0

Answer: B,E,F

Explanation:

(B) the inner core is solid. (E) the outer core is liquid and moving. (F) Earth's core is composed of iron and nickel

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PLEASE NEED THIS QUICKLY

saw5 [17]

The potential energy of the block is A) 490 J

Explanation:

The potential energy of an object is the energy possessed by the object due to its position in the gravitational field.

It is calculated as follows:

$PE=mgh$

where

m is the mass of the object

g is the acceleration due to gravity

h is the height of the object above the ground

For the block in this problem, we have:

m = 10 kg

$g=9.8 m/s^2$

h = 5 m

Therefore, its potential energy is:

$PE=(10)(9.8)(5)=490 J$

Learn more about potential energy:

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brainly.com/question/10770261

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3 years ago

In a model of the solar system that was about as large as a college campus how large would the Sun be?

nordsb [41]

Small car is the answer

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2 years ago

The fast train known as the TGV (Train à Grande Vitesse) that runs south from Paris, France, has a scheduled average speed of 21

andrezito [222]

Answer:

Explanation:

Given

average speed of train $(v_{avg})=216 kmph\approx 60 m/s$

Maximum acceleration=0.05g

Now centripetal acceleration is

$a_c=\frac{v^2}{r}$

$0.05\times 9.8=\frac{60^2}{r}$

r=7346.93 m

(b)Radius of curvature=900 m

therefore $a_c=\frac{v^2}{r}$

$v=\sqrt{a_cr}$

$v=\sqrt{0.05\times 9.8\times 900}$

$v=\sqrt{441}=21 m/s$

8 0

3 years ago

Find the magnitude of the average force ⟨Fx⟩⟨Fx⟩ in the x direction that the particle exerts on the right-hand wall of the conta

hodyreva [135]

Answer:

See explaination

Explanation:

Please kindly check attachment for the step by step solution of the given problem.

The attached file has a detailed solution of the given problem.

4 0

2 years ago

How much tension must a rope withstand if it is used to accelerate 70.0 skier behind a boat at 1.50m/s^2?

SIZIF [17.4K]

It will be stand 46.67 all i did was divide both numbers but im not sure if im right but i hope i am hope i helped:)

6 0

3 years ago