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Zielflug [23.3K]
4 years ago
8

What are the basic requirements for a terrestrial world to have a global magnetic field?

Physics
1 answer:
Readme [11.4K]4 years ago
3 0

Explanation:

There must be differences in temperature, pressure and composition within a liquid metal core inside the planet, since this produces a motion of the liquid metal, generating electric currents, which produce magnetic fields, that align, combining their effect to produce a large field Magnetic that envelops the planet.

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Joey is riding in an elevator which is accelerating upwards at 2.0 m/s2. The elevator weighs 300.0 kg, and Joey weighs 60.0 kg.
vodka [1.7K]

4200 N  is the tension in the cable that pulls the elevator upwards.

The correct option is A.

<h3>What does tension ?</h3>

Tension is the force that is sent through a rope, thread, or wire whenever two opposing forces pull on it. Along the whole length of the wire, the tensile stress pulls equally on all objects at the ends. Every physical object that comes into contact with that other one exerts force on it.

<h3>Briefing:</h3>

We employ the following formula to determine the cable's tension.

Formula:

T = mg+ma............ Equation 1

Where:

T is the cable's tension.

M = Mass of the elevator and the Joey

Accelerating with a

g = Gravitational acceleration

Considering the query,

Given:

m = (300+60) = 360 kg

a = 2 m/s²

g = 9.8 m/s²

Substitute these values into equation 2

T = (360×9.8)+(360×2)

T = 3528+720

T = 4248 N

T ≈ 4200 to the nearest hundred.

To know more about Tension visit:

brainly.com/question/14177858

#SPJ1

7 0
2 years ago
A student heats a piece of aluminum, with specific heat 0.900 J/gºC, in
tankabanditka [31]

Answer:

my bad i need points good luck

Explanation:

adawd

8 0
3 years ago
A student writes the following script for a scene in a futuristic movie.
Triss [41]
The astronauts hearing the rocket landing is inaccurate. Sound waves can’t travel through a vacuum, meaning a place where there are no air particles. They are mechanical waves and require a medium to travel through. So, because there is no air in space, you can’t hear anything.
8 0
3 years ago
A hot iron is turned off and cools down to room temperature. The iron cools because:
Blababa [14]

Answer:

c

Explanation:

The room temp is converted to the iron.

5 0
3 years ago
The following are explanations why there is light. Which of the following is true?
Andrew [12]
What are the answers to choose from
8 0
3 years ago
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