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Slav-nsk [51]
4 years ago
15

Give reasons:A freely suspended magnet showsN-S poles at rest.​

Physics
1 answer:
aniked [119]4 years ago
7 0

Answer:

A freely suspended magnet comes to rest along the N-S direction.

Explanation:

-Irrespective of direction of suspension, the bar eventually comes to rest at earth's N-S direction.

-Bar end that points to Earth's north is called the <em>North Pole</em>. Bar end that point's to earth's south is called the <em>South pole</em>.

-The reason for this default positioning is called the Directive Property. This is because earth acts as an external magnetic field.

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Shanai drove 40 miles to the west, then turned around and drove 70 miles to the east. Draw vectors that show each segment of her
Dmitry [639]
Well she drove 30 more miles to the east than the west but I don’t understand what u are asking
4 0
3 years ago
What is motion? give 3 examples
Tomtit [17]

Answer:

Motion definition: the action or process of moving or being moved.

Examples:

1. moving a hand

2. riding a bicycle

3. running

8 0
3 years ago
An opera singer breaks a crystal glass with her voice. Which best explains why this occurs? The pitch of her voice matches the p
aalyn [17]

The frequency at which the body vibrates breaks is natural frequency. The glass with her voice because the frequency of her voice matches the natural frequency of the glass.

<h3>What is the natural frequency?</h3>

When there is no external force acting on the body unless the body vibrates is known as the natural frequency of vibration.it is denoted by \rm w_n.

when the frequency of a body matches the natural frequency a condition occurs known as resonance.

To learn more about the natural frequency refer to the link;

brainly.com/question/1123932

3 0
2 years ago
A wire 50.0 m long and 2.00 mm in diameter is connected to a source with a potential difference of 9.11 V, and the current is fo
Alex787 [66]

Answer:

ρ = 1.6*10⁻⁸ Ω/m.

Explanation:

  • Applying Ohm's Law to the wire, assuming that it can be treated as a pure resistance, the resistance of the wire can be obtained as follows:

       R = \frac{V}{I} = \frac{9.11V}{36.0A} = 0.253  \Omega (1)

  • At the same time, we know that there exists a relationship between the resistance, the resistivity ρ, the length L and the area A of the wire, that is given for the following expression:

       R = \rho* \frac{L}{A} (2)

  • The area of the circular section of the wire, can be expressed as a function of the diameter d, as follows:

      A = \frac{\pi*d^{2} }{4} = \frac{\pi*(0.002m)^{2}}{4} = \pi*10e-6 (3)

  • Replacing  the left side of (2) by (1), and (3) on the right side, we can solve for the resistivity ρ as follows:

       \rho = \frac{R*A}{L} = \frac{0.253\Omega*\pi*10e-6}{50.0m} = 1.6e-8 \Omega/m

  • ρ = 1.6*10⁻⁸ Ω/m
4 0
3 years ago
Four of the wavelengths of the Balmer series occur in the visible spectrum (656 nm, 486 nm, 434 nm, and 410 nm). In which region
djyliett [7]

Answer: radio waves, microwaves, infrared waves.

Explanation:

Electromagnetic spectrum increases in wavelength and decreases with frequency in the following order

Gamma ray, X ray, Ultraviolet rays, Visible light, Infrared rays, Radio waves.

Since 397nm is greater than the value of visible spectrum, this shows that radio waves, microwaves and infrared wave falls in the spectrums of the wavelength value.

4 0
3 years ago
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