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Feliz [49]
3 years ago
9

Describe the behavior of magnets

Physics
1 answer:
tatyana61 [14]3 years ago
8 0
They have a north and South Pole .The opposite poles attract to each other ,the same poles repel from each other.
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While fishing on a lake, a fisherman notices ripples 0.32 m apart, and they are
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the main properties of the main wave propertioes include wavelength amplitude, cruest an trough

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3 years ago
What are the consequences of fertilizing chemicals in water?
Archy [21]
It can cause the water to create algae.
5 0
4 years ago
A spring, having an unstretched length of 2ft, has one end attached to the 10lb ball. determine the angle ? of the spring if the
Ganezh [65]
The angle theta of the spring is 31 degrees. To solve for this, show the equation which is equal to the 10lb ball. With this, the unknown will be the angle. Then transpose/transfer the terms in order to isolate the variable for the angle. First solve for s, then solve for angle theta. You will come up with s = .5849 ft and angle theta = 31.2629 or 31 degrees. Hope this helps.
5 0
4 years ago
A piece of Nichrome wire has a radius of 7.1 x 10-4 m. It is used in a laboratory to make a heater that dissipates 3.20×102 W of
bekas [8.4K]

Answer:

the length of the Nichrome wire is <em>59.88 m</em>

<em></em>

Explanation:

The resistance of a wire is determined by:

P = V² / R                              or    R = V² / P

where

  • V is the voltage
  • R is the resistance
  • P is the power

We also know that

R = PL / A

where

  • A is the area and it is equal to πr²
  • P = 3.20 × 10² W

Therefore, the length of the Nichrome wire is

L  = RA / ρ

L = (V²/P)(πr²) / ρ

L = V²πr² /  ρ P

L = (110 V)²(π)(7.1 × 10⁻⁴ m)² / (3.2 × 10² W)(100 × 10⁻⁸ Ω·m)

<em>L = 59.88 m</em>

7 0
4 years ago
A critical period begins and ends abruptly
STatiana [176]

Answer:

yes

Explanation:

<em>A critical period? </em>

<em>A.begins and ends abruptly </em>

<em>B.begins and ends gradually </em>

<em>C.is unaffected by stimuli </em>

<em>D.is unlikely to impact development</em>

<em>correct answer (A.begins and ends abruptly )</em>

8 0
3 years ago
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