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NeX [460]
3 years ago
5

About how often does a 1-kilometer object strike the earth? about how often does a 1-kilometer object strike the earth? every ye

ar every million years every billion years
Physics
1 answer:
stiv31 [10]3 years ago
5 0
The correct option is the second one, which is: Every million years.

 The impact of a 1-kilometer object on our planet, would cause significant consequences. As the astronomers have found in other terrestrial bodies, this kind of impact creates largers craters on the surface.
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The molecules of a substance are moving rapidly in a container. The molecules do not interact with each other. If the container
nika2105 [10]

Answer:

Gas

Explanation:

5 0
4 years ago
Read 2 more answers
A proton is 0.9 meters away from a 1.4 C charge. What is the magnitude of the electric force between the proton and the charge
Digiron [165]

Answer:

F = 2.49 x 10⁻⁹ N

Explanation:

The electrostatic force between two charged bodies is given by Colomb's Law:

F = \frac{kq_1q_2}{r^2}\\

where,

F = Electrostatic Force = ?

k = colomb's constant = 9 x 10⁹ N.m²/C²

q₁ = charge on proton = 1.6 x 10⁻¹⁹ C

q₂ = second charge = 1.4 C

r = distace between charges = 0.9 m

Therefore,

F = \frac{(9\ x\ 10^9\ N.m^2/C^2)(1.6\ x\ 10^{-19}\ C)(1.4\ C)}{(0.9\ m)^2}

<u>F = 2.49 x 10⁻⁹ N</u>

8 0
3 years ago
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1. What would be the final temperature of a mixture of 50g of water at 200C temperature and
ad-work [718]
It would be the average I guess..300c temperature.Heat flows from higher temp. to lower temp. till the temp. of both the liquids are same.
8 0
3 years ago
During any process, the net electric charge of an isolated system does not change.
astraxan [27]

Answer:

Due to the Electric Charge Conservation Law, the statement is <u><em>true.</em></u>

Explanation:

Conservation laws state that the physical properties or magnitudes of a given system have a constant value, that is, they cannot change.

Electric charge is a property that exists in some subatomic particles, manifested by attractions and repulsions that give rise to electromagnetic interactions.

The electric charge is governed by the principle of conservation of the charge. This law establishes that the total load in an isolated system is constant, that is, it is not possible to create or destroy isolated loads. That is, they can only be moved from one body to another or from one place to another inside the given body.

As mentioned, this law is only valid for closed systems in which no charged particles enter or leave outside. Then it is concluded that the algebraic sum of the charges of all particles remains constant.

Finally, <u><em>due to the Electric Charge Conservation Law, the statement is true.</em></u>

5 0
4 years ago
PLEASE HELP!!! 12-14!!!!!
kondor19780726 [428]
12-14 equals -2.....
8 0
3 years ago
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