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arsen [322]
3 years ago
15

Earth's magnetic field is generated by

Physics
2 answers:
evablogger [386]3 years ago
6 0
The movement of electrical charges inside the earth
qwelly [4]3 years ago
5 0

Answer:

Explanation:

The magnetic field, is generated by electric currents due to the motion of convection currents of molten iron in the Earth's outer core : these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.

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If the torque required to loosen a nut that is holding a flat tire in place on a car has a magnitude of 33 N · m, what minimum f
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Answer:

The minimum force that must be exerted by the mechanic at the end of a 30 cm-long wrench to loosen the nut is 110N

Explanation:

Torque = Fd sin θ

For a torque, the minimum force must be applied perpendicular to the lever arm, so that θ = 90° and sin θ = sin 90° = 1

Torque = 33 N.m

F = Force applied = ?

d = 30 cm = 0.3 m

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4 years ago
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The escape speed from an object is v2 = 2GM/R, where M is the mass of the object, R is the object's starting radius, and G is th
Rom4ik [11]

Answer:

Approximate escape speed = 45.3 km/s

Explanation:

Escape speed

        v=\sqrt{\frac{2GM}{R}}

Here we have

   Gravitational constant = G = 6.67 × 10⁻¹¹ m³ kg⁻¹ s⁻²

   R = 1 AU = 1.496 × 10¹¹ m

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Substituting

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Approximate escape speed = 45.3 km/s

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3 years ago
In the analogy for how a wave travels along a line of dominoes standing on end, each domino represents___________.
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