All categories

3 years ago

Why does a compass point towards earths geographic North Pole

Physics

2 answers:

kakasveta [241]3 years ago

6 0

Answer:

2) Earth’s geographic North Pole is close to the magnetic south pole.

3) Magnets allowed to move freely align themselves to point north.

5) The north pole on a compass is attracted to Earth’s magnetic south pole.

Hope this helped:)

Travka [436]3 years ago

3 0

It doesn't. It points to the Earth's MAGNETIC pole. There's only a very small part of the Earth's surface where the geographic pole is in exactly the same direction, and there are places where there's a huge difference. For example, I've worked in parts of Alaska where compasses point WEST !

You might be interested in

Would you buy a pair of shoes from the same company that sold Jack his shoes? Why or why not?

LenKa [72]

Answer:

Maybe

Explanation:

It depends. If he says the shoes sucked than no because they suck-

But if he really liked the shoes and said it was really good than yes

I would buy the shoes

8 0

3 years ago

Read 2 more answers

if you drop a softball from just above your knee, the kinetic energy of the ball just before it hits the ground is about 1 jule,

ipn [44]

False.

The mass of a softball is approximately 200 g (0.2 kg), while the knees are located approximately at 30 cm (0.3 m) from the ground. It means that the gravitational potential energy of the ball when it is dropped is
$U=mgh=(0.2 kg)(9.81 m/s^2)(0.3 m)=0.6 J$

This corresponds to the total mechanical energy of the ball at the moment it is dropped, because there is no kinetic energy (the ball starts from rest). Then the ball is dropped, and just before it hits the ground, all this energy is converted into kinetic energy: but energy cannot be created, so its final kinetic energy cannot be greater than 0.6 J.

7 0

3 years ago

Does anyone know how to solve this?

kompoz [17]

Answer:

110 m

Explanation:

Draw a free body diagram of the car. The car has three forces acting on it: normal force up, weight down, and friction to the left.

Sum of the forces in the y direction:

∑F = ma

N − mg = 0

N = mg

Sum of the forces in the x direction:

∑F = ma

-F = ma

-Nμ = ma

Substitute:

-mgμ = ma

-gμ = a

Given μ = 0.40:

a = -(9.8 m/s²) (0.40)

a = -3.92 m/s²

Given that v₀ = 30 m/s and v = 0 m/s:

v² = v₀² + 2aΔx

(0 m/s)² = (30 m/s)² + 2 (-3.9s m/s²) Δx

Δx ≈ 110 m

8 0

3 years ago

Read 2 more answers

What happens to the light that strikes the Black Paint

SSSSS [86.1K]

Answer:

It absorbs all the wavelengths of visual light that fall on it and no light is reflected into the eye from that object.

Hope this helps

8 0

3 years ago

Read 2 more answers

What is the threshold velocity vthreshold(ethanol) for creating Cherenkov light from a charged particle as it travels through et

AnnZ [28]

Explanation:

The velocity of light in a medium of refractive index $n[tex] is given by,
[tex]v=\frac{c}{n}$

$v \text { is the velocity of light in the medium }$

$c \text { is speed of light in vacuum }$

The exact value of speed of light in vacuum is $299792458 \mathrm{m} / \mathrm{s}$ .

For Cherenkov radiation to be emitted, the velocity of the charged particle traversing the medium must be greater than this velocity. Thus, the threshold velocity of for creating Cherenkov radiation is,

$v_{\text {Cherenkov }} \geq \frac{c}{n}$

$v_{\text {threshod }}=\frac{c}{n}$

For water $n=1.33,[tex] thus the threshold velocity for producing Cherenkov radiation in water is,
[tex]v_{\text {threatold }(\text { water })} &=\frac{299792458 \mathrm{m} / \mathrm{s}}{1.33}$

$=225407863 \mathrm{m} / \mathrm{s}$

$=2.254 \times 10^{8} \mathrm{m} / \mathrm{s}$

For ethanol $n=1.36[tex], thus the threshold velocity for producing Cherenkov radiation in water is,
[tex]v_{\text {threstold }( \text { ettanol) } } &=\frac{299792458 \mathrm{m} / \mathrm{s}}{1.36}$

$=220435630 \mathrm{m} / \mathrm{s}$

$=2.204 \times 10^{8} \mathrm{m} / \mathrm{s}$

6 0

3 years ago

Read 2 more answers