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3 years ago

14

Atoms of two different elements must have different

1 answer:

sergejj [24]3 years ago

4 0

Explanation:

C. Atomic numbers....

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irina [24]

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3 years ago

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A magnetic field would be produced by a beam of

Oksi-84 [34.3K]

<span>A magnetic field would be produced by a beam of (3) protons.
Although you could easily make a case for any of these four options (the question is pretty ambiguous), there can be only one correct answer, which is the third option, in this case.
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4 years ago

Calculate the force of gravity on the 1.2-kg mass if it were 1.9×107 m above earth's surface (that is, if it were four earth rad

Anettt [7]

Answer:

Force of gravity, F = 0.74 N

Mass of an object, m = 1.2 kg

Distance above earth's surface, $d=1.9\times 10^7\ m$

Mass of Earth, $M=5.97\times 10^{24}\ kg$

Radius of Earth, $r=6.37\times 10^6\ m$

We need to find the force of gravity above the surface of Earth. It is given by :

$F=G\dfrac{mM}{R^2}$

R = r + d

R = 25370000 m

$F=6.67\times 10^{-11}\times \dfrac{5.97\times 10^{24}\ kg\times 1.2\ kg}{(25370000\ m)^2}$

F = 0.74 N

So, the force of gravity on the object is 0.74 N. Hence, this is the required solution.

5 0

4 years ago

How many significant digits are in 0.3500

const2013 [10]

4 significant figures (the 0’s are considered significant because they follow a non-zero number)

7 0

4 years ago

An image cannot be projected and forms where light rays appear to originate.

irakobra [83]

An VIRTUAL image cannot be projected, and

forms where light rays appear to originate.

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3 years ago