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qwelly [4]
3 years ago
12

Explain how magnets have an attractive force and repulsive force

Physics
1 answer:
shusha [124]3 years ago
7 0
The force between two parallel wires carrying currents in the same direction is attractive. It is repulsive if the currents are in opposite directions.
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Freud believes that defense mechanisms are reactions people have to protect themselves from uncomfortable feelings. the article
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6 0
2 years ago
The momentum of a 0.1 kg object traveling at 2000 m/s is 20,000 kg·m/s. True or False
Alina [70]

That's false.  

The definition of momentum is (mass) x (speed), so they must be multiplied.

"20,000 kg-m/s" has the correct units resulting from multiplication, but the number could only be the result of division.

3 0
3 years ago
What is the frequency of an electromagnetic wave that has a wavelength of 300,000 km? (the speed of light is 300,000 km/s.)?
expeople1 [14]
Frequency represents the number of complete oscillations in one second. it is measured in Hertz (Hz). Electromagnetic waves are waves which do not require a material media for transmission. They travel with a speed of light.
The speed (m/s) of a wave is given by  frequency (Hz) × Wavelength (m)
Speed is 300,000 km/sec or 300,000,000 m/s and the wavelength is 300,000  km or 300,000,000 m.
Frequency = speed÷ wavelength
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Therefore, the frequency of the wave is 1Hz

6 0
3 years ago
TRANSFORMA: 765 mm Hg a atm
-Dominant- [34]

Presión

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1,00658

Answer:

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3 years ago
5th Grade. Please help! SC standards
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