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posledela
3 years ago
14

NEED ANSWER FAST!!! Worth 15 points

Physics
2 answers:
nadezda [96]3 years ago
4 0

Answer:

B. Magnetic field

Explanation:

When metal filings are close to a magnetic field, they tend to align with it.

In other words, the show the direction of the magnetic field at each point.

even by guessing, there is no electric field around steady magnets, nor the gravitational attraction has nothing to dp with that. :)

inessss [21]3 years ago
3 0
I think it’s the magnetic field
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Answer:

ac = 3.92 m/s²

Explanation:

In this case the frictional force must balance the centripetal force for the car not to skid. Therefore,

Frictional Force = Centripetal Force

where,

Frictional Force = μ(Normal Force) = μ(weight) = μmg

Centripetal Force = (m)(ac)

Therefore,

μmg = (m)(ac)

ac = μg

where,

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μ = coefficient of friction of tires (kinetic) = 0.4

g = 9.8 m/s²

Therefore,

ac = (0.4)(9.8 m/s²)

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3 years ago
How many kisses is 50 hectokisses?<br><br> What would you be if you earn a megabuck year?
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1.) 6 hectokisses 50 times

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L 10. A car with a mass of 2,000 kilograms is moving around a circular curve at a uniform velocity of 25 meters per second. The
garri49 [273]
Centripetal Force, F = mv²/r

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4 years ago
How are Earth, the Moon and Sun alligned during a neap tide?
Tpy6a [65]
Neap tides occur at or immediately after the First Quarter
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6 0
4 years ago
The emission of x rays can be described as an inverse photoelectric effect.
timama [110]

Answer:

The potential difference through which an electron accelerates to produce x rays is 1.24\times 10^4\ volts.                                                  

Explanation:

It is given that,

Wavelength of the x -rays, \lambda=0.1\ nm=0.1\times 10^{-9}\ m

The energy of the x- rays is given by :

E=\dfrac{hc}{\lambda}

The energy of an electron in terms of potential difference is given by :

E=eV

So,

\dfrac{hc}{\lambda}=eV

V is the potential difference

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V=\dfrac{hc}{e\lambda}

V=\dfrac{6.63\times 10^{-34}\times 3\times 10^8}{1.6\times 10^{-19}\times 0.1\times 10^{-9}}

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or

V=1.24\times 10^4\ volts

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4 0
3 years ago
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