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steposvetlana [31]
3 years ago
5

What is meant when Earth’s systems are said to be “dynamic”?

Physics
1 answer:
Anestetic [448]3 years ago
3 0
They are constantly changing
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The magnitude of the electrostatic force between two identical ions that are separated by a distance of 8.3 × 10-10m is 192.9 ×
iragen [17]

Answer:

(a) 1.215 x 10^-13 J

(b) n = 7.6 x 10^5

Explanation:

distance, r = 8.3 x 10^-10 m

Force, F = 192.9 x 10^-9 N

Let the charge is q.

(a) According to the Coulomb's law

F=\frac{Kq\times q}{r^{2}}

192.9\times10^{-9}=\frac{9\times10^{9}\times q\times q}{\left (8.3\times 10^{-10}  \right )^{2}}

q = 1.215 x 10^-13 C

(b) Let n number of electrons are missing.

n = \frac{q}{e}=\frac{1.215\times10^{-13}}{1.6\times10^{-19}}

n = 7.6 x 10^5

4 0
4 years ago
Katie is walking in an orange grove. She looks at all of the orange trees. She wants to find out how many seeds are in each oran
aliya0001 [1]

Answer:

What she can do to collect the data is;

B. Gather a few oranges and see how many seeds are in each

Explanation:

The quantity Katie wants to find out is the number of seeds contained in each orange

Therefore, the required population = The number of seeds in a given orange

The method of estimation of the number of seeds per orange is sampling method, whereby the number of seeds in each of the orange in the sample is used to as an hypothesis as to the number of seeds expected in each orange of the entire population.

Therefore, in order to collect the data, she can gather a few oranges and see how many seeds are in each.

3 0
3 years ago
Which statement describes the relationship between bond strength and the melting and boiling points of a substance?
kogti [31]
I think the answer will be B or C?
6 0
3 years ago
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PLEASE HELP In a system, when potential energy decreases, then entropy also decreases.
expeople1 [14]

False it never decreases, it increases or remain the same.


7 0
3 years ago
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Sounds with frequencies too low for the human ear to hear are called what?
lisabon 2012 [21]
Infrasound, I believe.
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4 years ago
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