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2 years ago

What is magnestism? Explain

Physics

2 answers:

hjlf2 years ago

7 0

Answer:

Magnetism is the force of attraction or repulsion between substances.

Magnetism is defined as an attractive and repulsive phenomenon produced by a moving electric charge. The affected region around a moving charge consists of both an electric field and a magnetic field. The most familiar example of magnetism is a bar magnet, which is attracted to a magnetic field and can attract or repel other magnets.Magnetism is caused by the electromagnetic force, which is one of the four fundamental forces of nature. Any moving electric charge (electric current) generates a magnetic field perpendicular to it.

Lisa [10]2 years ago

3 0

Answer:

a physical phenomenon produced by the motion of electric charge, which results in attractive and repulsive forces between objects.
the ability to attract and charm people.

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What is the meaning of anything

larisa86 [58]

Answer:

everything

Explanation:

Used to refer to a thing, no matter what

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3 years ago

20.In case the conductor is a heating appliance, then this energy(w) is converted into heat(H) i.e

Scilla [17]

Answer:

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Explanation:

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3 years ago

A car traveling in a constant speed of 55km/h on a circular track what is the acceleration explain

a_sh-v [17]

Answer:

See the explanation below

Explanation:

We must solve this problem by defining that when we have a constant velocity, the acceleration is equal to zero. That is, when there is no speed change, there is no acceleration. We can understand it very easily by means of the following equation of kinematics.

$v_{f}=v_{o}+a*t$

where:

Vf = final velocity = 55 [km/h]

Vo = initial velocity = 55 [km/h]

a = acceleration [m/s²]

t = time [s]

As we can see there is no change in speed, and the difference between the two is equal to zero.

$0 = 0 +a*t\\a = (0-0)/t\\a= 0$

3 0

3 years ago

What moves in and out of an open system like the human body?

HACTEHA [7]

Carbon dioxide because that's what we breath out?

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3 years ago

Consider as a system the Sun with Saturn in a circular orbit around it. Find the magnitude of the change in the velocity of the

Doss [256]

Answer:

$v_{su} = 19.44 m/s$

Explanation:

$m_{su}=5.68x10^{29}kg\\m_{sa}=5.68x10^{26}kg$

$T=9.29x10^8\\r_{o}=1.43x10^{12}$

If the sun considered as x=0 on the axis to put the center of the mass as a:

$m_{su}*r_{o}=(m_{sa}+m_{su})*r_{1}$

solve to r1

$r_1=\frac{m_{sa}*r_{o}}{m_{sa}+m_{su}}=\frac{5.68x10^{26}*1.43x10^{12}}{5.68x10^{26}+5.68x10^{26}}$

$r_1=1.428x10^9m$

Now convert to coordinates centered on the center of mass. call the new coordinates x' and y' (we won't need y'). Now since in the sun centered coordinates the angular momentum was

$L = \frac{m_{sa}*2*pi*r_1^2}{T}$