Ask question

Ask question

All categories

3 years ago

11

A group of atoms with aligned magnetic poles are known as which of the following?

2 answers:

Serhud [2]3 years ago

7 0

Answer:

The correct answer is option C. "domains".

Explanation:

The regions within a magnet at which the magnetization is in a uniform direction are known as magnetic domains. These domains are group of atoms with aligned magnetic poles, this means that the magnetic moments of the atoms are aligned and that their point to the same direction. The magnetic domains are the ones that give the magnetic behavior of ferromagnetic materials.

cestrela7 [59]3 years ago

4 0

A magnetic domain is a group of atoms aligns with magnetic poles. Domains are usually <span>light and dark stripes visible within each grain.</span>

You might be interested in

19.A 20 kg sign is pulled by a horizontal force such that the single rope (originally vertical) holding the sign makes an angle

Andreyy89

Answer:

A) $T=209.94N$

B) $F=75.24N$

Explanation:

Using the free body diagram and according to Newton's first law, we have:

$\sum F_y=Tcos(21^\circ)-mg=0(1)\\\sum F_x=F-Tsin(21^\circ)=0(2)$

A) Solving (1) for T:

$T=\frac{mg}{cos(21^\circ)}\\T=\frac{20kg(9.8\frac{m}{s^2})}{cos(21^\circ)}\\T=209.94N$

B) Solving (2) for F:

$F=Tsin(21^\circ)\\F=(209.94N)sin(21^\circ)\\F=75.24N$

8 0

3 years ago

You're driving your pickup truck around a curve that has a radius of 17 m.

creativ13 [48]

Answer:

$v = 10.8 m/s^{2}$

Explanation:

The centripetal force experienced by the steel toolbox is provided by the friction between the toolbox and the bed of the truck.

Therefore,

$\frac{mv^{2} }{r} = f$ --------------------------------(1)

Here,

v - speed of truck

m - mass of toolbox

r - radius of curve around which the truck is turning

f - frictional force

$f \leq$ μmg

In order to obtain Vmax, frictional force must also be max

Thus,

f = μmg--------------------------------------------------(2)

Substitute (2) in (1)

$\frac{mv^{2} }{r} =$ μmg

$v^{2} =$ μgr

g - 9.8 m/ $s^{2}$

The standard value of coefficient of static friction between steel and steel is

μ ≈ 0.7

Therefore,

$v = 10.8 m/s^{2}$

7 0

3 years ago

Physical science includes the study of

liraira [26]

The study of the inorganic world.

4 0

3 years ago

Read 2 more answers

What is the source of energy

liberstina [14]

Fossil Fuels is the largest source for energy

Hope this is what you were asking :)

8 0

3 years ago

What happens to the speed of molecules as temperature increases

rusak2 [61]

Then the the speed of the molecules also increase

6 0

3 years ago

Read 2 more answers