Ask question

Ask question

All categories

Norma-Jean [14]

4 years ago

15

The movement of a magnetic pole away from the actual pole

1 answer:

Lunna [17]4 years ago

3 0

The North Magnetic Pole is the point on the surface of Earth's Northern Hemisphere at which the planet's magnetic field points vertically downwards (in other words, if a magnetic compass needle is allowed to rotate about a horizontal axis, it will point straight down). There is only one location where this occurs, near (but distinct from) the Geographic North Pole and the Geomagnetic North Pole.

You might be interested in

An older camera has a lens with a focal length of 60mm and uses 34-mm-wide film to record its images. Using this camera, a photo

lesya692 [45]

Answer:

24.71 mm

Explanation:

Distance is proportional to focal length, so

d∝f

which means

$\frac{d'_1}{d'_2}=\frac{f_1}{f_2}$

Magnification of first lens

$M_2=-\frac{d'_1}{d_1}$

and

$M_2=\frac{h'_1}{h_1}$

Similarly, magnification of second lens

$M_2=-\frac{d'_2}{d_1}$

and

$M_2=\frac{h'_2}{h_1}$

From the above equations we get

$\frac{M_1}{M_2}=\frac{d'_1}{d_2'}$

and

$\frac{M_1}{M_2}=\frac{h'_1}{h_2'}$

which means,

$\frac{d'_1}{d_2'}=\frac{h'_1}{h_2'}$

and

$\frac{d'_1}{d_2'}=\frac{f_1}{f_2}$

So, we get

$\frac{f_1}{f_2}=\frac{h'_1}{h_2'}\\\Rightarrow f_2=f_1\times\frac{h_2'}{h'_1}\\\Rightarrow f_2=60\times\frac{14}{34}=24.71\ mm$

∴ Focal length should this camera's lens is 24.71 mm

6 0

3 years ago

Answer lol! pls! !!!

kogti [31]

Answer:

Confused

Explanation:

more details

5 0

3 years ago

Read 2 more answers

What must be known to determine the direction of the magnetic force on a charge? Check all that apply.

sergeinik [125]

The strength of the magnetic field

8 0

3 years ago

Read 2 more answers

A tank with a flat bottom is filled with water to a height of 7.5 meters. What's the pressure at any point at the bottom of the

Ivanshal [37]

<h3>Answer:</h3>

p=75 kPa

<h3>Explanation:</h3>

_______________

h=7,5 m

g=10 m/s²

ρ=1000 kg/m³

_______________

p - ?

_______________

p=ρgh=1000 kg/m³ · 10 m/s² · 7,5 m = 75000 Pa = 75 kPa

5 0

2 years ago

A low-velocity flow over a smooth stream bed produces a

Reika [66]

Produces<span> V-shaped valley, steep sides Rapids

</span>

4 0

3 years ago