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2 years ago

Why were you able to see the effects of the magnetic fields using iron filings

2 answers:

6 0

The iron filings aligned themselves in a pattern, along with the magnet connecting the north and south poles. This creates the “magnetic field”. Interacting with a metal object in between the magnetic properties of the metal interact with the magnet, expressing signs of magnetic force acting on it and the metal, pulled together letting you see the see the effects of the magnetic fields using iron filings.

Talja [164]2 years ago

6 0

Iron filing are soft magnetic materials. The are highly attracted by magnets.
They are used in the study of magnetic fields.
Another reason why they are used because they are light and and they can aline themselves in the paths of the magnetic fields. This way the fields patterns can be seen clearly.

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Why do intrusive igneous rocks have large crystals?

Aleksandr-060686 [28]

The magma cools very slowly so that the crystals of different minerals have time to grow. The magma molecules in have time to organize themselves into crystal formations before the magma hardens. The naked eye helps the Intrusive rocks that has large crystals be seen.

3 0

3 years ago

A spring is mounted horizontally, with its left end fixed. A spring balance attached to the free end and pulled toward the right

malfutka [58]

Answer:

200 N/m

20 rad/s

0.31415 seconds

3.18309 Hz

Explanation:

m = Mass of glider = 0.5 kg

x = Displacement of spring

F = Force on spring = 6 N

From Hooke's law we have relation

$F=kx\\\Rightarrow k=\frac{F}{x}\\\Rightarrow k=\frac{6}{0.03}\\\Rightarrow k=200\ N/m$

The spring constant is 200 N/m

Angular frequency is given by

$\omega=\sqrt{\frac{k}{m}}\\\Rightarrow \omega=\sqrt{\frac{200}{0.5}}\\\Rightarrow \omega=20\ rad/s$

The angular frequency is 20 rad/s

Frequency is given by

$f=\frac{\omega}{2\pi}\\\Rightarrow f=\frac{20}{2\pi}\\\Rightarrow f=3.18309\ Hz$

The frequency is 3.18309 Hz

Time period is given by

$T=\frac{1}{f}\\\Rightarrow T=\frac{1}{3.18309}\\\Rightarrow T=0.31415\ s$

The time period is 0.31415 seconds

6 0

2 years ago

A car move at an initial velocity of 240m and reach at the final velocity of 540m in 8hours. calculate its acceleration.

disa [49]

Answer:

a = 0.01m/s²

Explanation:

V_f = V_0+a*t

V_f = Velocity final

V_0 = Velocity initial

a = acceleration

t = time

a = (V_f-V_0)/t

a = (540m/s-240m/s)/((8hr)*(60min/1hr)*(60s/1min))

a = 0.01m/s²

6 0

2 years ago

What is another name for the surface of the sun?

Volgvan

Answer: Chromosphere hope this helps :)

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2 years ago

A neutral object has:

mars1129 [50]

Answer:

c. Only neutrons.

hope it helps :)

3 0

2 years ago