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3 years ago

Laticia draws the diagram below to show Earth’s magnetic field.

Physics

2 answers:

Arada [10]3 years ago

7 0

Answer:

The arrows to the right of Earth should point up

Explanation:

The Earth acts as a huge magnetic dipole, oriented as its axis of rotation, with the North Pole located at the South geographic pole and the South pole located at the North geographical pole.

In a magnetic dipole, the lines representing the field go out from the north pole into the south pole.

This means that for the Earth, the field lines should go from south (which is the north magnetic pole) to north (which is the south magnetic pole): therefore, the arrows to the right of the Earth should point up as well as the line to the left.

11Alexandr11 [23.1K]3 years ago

3 0

Answer: The correct answer is D

Explanation: The arrows to the right of Earth should point up.

Hope this helps :)

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4. A cinder block is sitting on a platform 20 m high. It has a mass of 4 kg. The block has energy. Calculate it.

zavuch27 [327]

Answer:

Explanation:

Since the block is at rest in an elevated position, we can assume that it only has potential energy.

U=mgh is the formula for potential energy where U=potential energy, m= mass, g=acceleration due to gravity, and h=height.

Plug in known variables....

U=4kg*9.8m/s^2*20m

U=784 joules of potential energy or letter A.

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2 years ago

A 3-kg wheel with a radius of 35 cm is spinning in the horizontal plane about a vertical axis through its center at 800 rev/s. A

Kruka [31]

Answer:

$\omega_f = 585.37 \ rev/s$

Explanation:

given,

mass of wheel(M) = 3 Kg

radius(r) = 35 cm

revolution (ω_i)= 800 rev/s

mass (m)= 1.1 Kg

I_{wheel} = Mr²

when mass attached at the edge

I' = Mr² + mr²

using conservation of angular momentum

$I \omega_i = I' \omega_f$

$(Mr^2) \times 800 = ( M r^2 + m r^2) \omega_f$

$M\times 800 = ( M + m )\omega_f$

$3\times 800 = (3+1.1)\times \omega_f$

$2400 = (4.1)\times \omega_f$

$\omega_f = 585.37 \ rev/s$

3 0

4 years ago

Differences between Pressure and upthrust

Angelina_Jolie [31]

Answer:

Pressure is equal to the ratio of thrust to the area in contact. Upthrust is a force exerted by the fluids on an object placed in the fluid . Upthrust acts in upward direction.

4 0

3 years ago

During nuclear decay, a new isotope is created. How is the nucleus of the new isotope different from the parent if the parent is

STALIN [3.7K]

Answer:

Alpha decay will produce a daughter nucleus with more protons and beta decay will produce a daughter nucleus with fewer protons than the parent nucleus has.

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3 years ago

Read 2 more answers

When compared to

ElenaW [278]

I think it is B, because the sun’s size is pretty average

3 0

2 years ago