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ICE Princess25 [194]

2 years ago

8

THE ANSWER!!! Please

1 answer:

Anuta_ua [19.1K]2 years ago

5 0

Answer:

I think -7 N. Netforce is 3N-10N= -7N

Explanation:

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Although the evidence is weak, there has been a concern in recent years over possible health effects from the magnetic fields ge

sergey [27]

Answer:

a

The magnetic field strength is $B = 2 \mu T$

Explanation:

From the question we are told that

The length line above the ground is $R = 20m$

The current of the line is $I = 200A$

The voltage of the line is $V = 110kV$

Generally magnetic field strength is mathematically represented as

$B = \frac{\mu_o I}{2 \pi R}$

Where $\mu_0$ is the permeability of free space $= 4\pi * 10^{-7} N/A^2$

$B = \frac{(4\pi * 10^{-7} N/A^2) *200}{2 \pi *20}$

$= (2.0*10^{-7})[\frac{200}{20} ]$

$= 2*10^{-6}T$

$= 2 \mu T$

Earths magnetic field is approximately given as $50 \mu T$

So the percentage would be

$= \frac{Magnetic \ Field \ Intensity \ Of \ Line}{Earth's \ Magnetic \ Field} * 100$

$= \frac{2 \mu T }{50 \mu T } * 100$

$=4$ %

7 0

2 years ago

How are oceans connected to all bodies of water

inn [45]

Oceans are collected to all bodies of water because

- All Rivers, streams, or swamps end up flowing out into an ocean somehow
- The oceans are the largest bodies of water, so most of the water on earth comes from them, or has been in the oceans.

7 0

3 years ago

A cat walks along a plank with mass M= 7.00 kg. The plank is supported by two sawhorses. The center of mass of the plank is a di

solong [7]

Answer:

Before the plank will tip cat will walk 1.652 m

Explanation:

Mass of the cat along with plank $m_1=7kg$

Center of mass of the plank $d_1=0.850m$

Mass of cat $m_2=3.6kg$

We have to find how far right of sawhorse B.

Plank will tip when weight of the cat about B is greater than the torque by the weight of the plank.

Balancing the the torque

$m_1gd_1=m_1gd_2$

$7\times 9.8\times 0.850=3.6\times 9.8\times d_2$

$d_2=1.652m$

5 0

3 years ago

The earth's magnetic field deflects the flow of current from?

alexgriva [62]

I don't really know the answer but maybe north pole and south pole?

7 0

3 years ago

Which of the following situations describes a change that will result in a new kind of matter with different characteristics?

taurus [48]

Answer:

Chemical property - characteristic of something that allows it to change to something new.

Explanation:

please make me braniest if I'm r8

6 0

2 years ago