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Paul [167]
3 years ago
10

What forces cause the magnetic repulsion and attraction?

Physics
1 answer:
frutty [35]3 years ago
4 0

Answer:

The cause of a magnetic force are small electrical currents or moving charges: Tiny circular currents at the atomic level are responsible in a permanent magnet for it to exert a magnetic force.

Explanation:

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A solar eclipse occurs when the Moon moves directly between the Earth and the Sun. When Venus moves directly between the Earth a
Serga [27]

Answer:

it's because the eclipse hides the moon and Venus and the sun

Explanation:

I found it

7 0
2 years ago
What is the speed of a 200-kilogram car that is driving with 2000 joules of kinetic energy? (SHOW ALL WORK)
Katyanochek1 [597]

Answer:

v ≈ 4.47

Explanation:

The Formula needed = <u>KE = </u>\frac{1}{2}<u> m v²</u>

<u></u>

Substitute with numbers known:

2000J = \frac{1}{2} × 200kg × v²

Simplify:

÷100       ÷100      (Divide by 100 on both sides)

2000J = 100 × v²

\frac{2000J}{100} =  v²

20 = v²

√         √             (Square root on both sides)

√20 = √v²

4.472135955 = v (Round to whatever the question asks)

v ≈ 4.47       (I rounded to 2 decimal places or 3 significant figures, as that is what it usually is)

3 0
3 years ago
How can you increase the rate of a reaction? Select all that apply. *
sergij07 [2.7K]

Answer:

- Increase the concentration of the reactants

-increase the temperature

- introduce a catalyst

6 0
3 years ago
The fed can attempt to decrease the federal funds rate by
Nataliya [291]

Answer:

purchasing bonds in order to increase the money supply.

Explanation:

The Federal Reserve raises or lowers interest rates through its regularly scheduled Federal Open Market Committee. That's the monetary policy arm of the Federal Reserve Banking System.

The Fed can attempt to increase the federal funds rate by selling Treasury​ bills, which decreases bank reserves.

4 0
3 years ago
If two runners take the same amount of time to run a mile, they have the same __________.
kramer
A. they have the same acceleration

I hope this helps!
8 0
4 years ago
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