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4 years ago

If a magnet could swing freely, what would happen to its north-seeking pole?

1 answer:

8 0

You clearly identified the pole you're talking about as the
"north-seeking" pole. Assuming your integrity and sincerity,
we would then naturally expect that pole to seek north, and
point to Earth's north magnetic pole.

I'm confident in this answer also because I have several of
these devices hanging from the ceiling of my office, and I can
attest to the fact that on most clear days, they do in fact point
toward Earth's north magnetic pole.

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The star Rho1 Cancri is 57 light-years from the earth and has a mass 0.85 times that of our sun. A planet has been detected in a

s344n2d4d5 [400]

Answer:

82780.42123 m/s

14.45 days

Explanation:

m = Mass of the planet

M = Mass of the star = $0.85\times 1.989\times 10^{30}\ kg=1.69065\times 10^{30}\ kg$

r = Radius of orbit of planet = $0.11\times 149.6\times 10^{9}\ m=16.456\times 10^{9}\ m$

v = Orbital speed

The kinetic and potential energy balance is given by

$\frac{GMm}{r^2}=\frac{mv^2}{r}\\\Rightarrow v=\sqrt{\dfrac{Gm}{r}}\\\Rightarrow v=\sqrt{\dfrac{6.67\times 10^{-11}\times 1.69065\times 10^{30}}{16.456\times 10^{9}}}\\\Rightarrow v=82780.42123\ m/s$

The orbital speed of the star is 82780.42123 m/s

The orbital period is given by

$t=\frac{2\pi r}{v}\\\Rightarrow t=\dfrac{2\pi \times 16.456\times 10^{9}}{82780.42123}\\\Rightarrow t=1249040.48419\ seconds=\dfrac{1249040.48419}{24\times 60\times 60}=14.45\ days$

The orbital period is 14.45 days

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3 years ago

What is the following correct way to write 2,330,000 In a scientific notation

NISA [10]

Answer:

2.33 × 10^6

hope this helps.

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3 years ago

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How many sig figs are in 0.32

jarptica [38.1K]

2 significant figures

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3 years ago

What is meant by the term resistance?

kondor19780726 [428]

Answer:

Definiton 1.the refusal to accept or comply with something; the attempt to prevent something by action or argument

Definition 2. the ability not to be affected by something, especially adversely

Definition 3. the impeding, slowing, or stopping effect exerted by one material thing on another

Definiton 4: the degree to which a substance or device opposes the passage of an electric current, causing energy dissipation. Ohm's law resistance (measured in ohms) is equal to the voltage divided by the current.

Explanation:

<em>Hope this Helps! If not Correct me!</em>

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3 years ago

Use the drop-down menus to order the steps for writing chemical names.

jekas [21]

Answer:3,2,4,5,1

Explanation:

I just did it on edgenuity

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3 years ago

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