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faust18 [17]
3 years ago
9

I need help, please!

Physics
1 answer:
marta [7]3 years ago
7 0

NO. it is not balanced

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Identify each energy exchange as primarily heat or work and determine whether the sign of ΔE is positive or negative for the sys
geniusboy [140]

Answer:

(a)Work done and ΔE are negative

(b)Work done and ΔE are negative

(c)Work done and ΔE are positive

Explanation:

(a) When the two balls collide, the first billiard ball transfers its kinetic energy to the second ball which consequently starts rolling as the system ball comes to rest. Therefore, the decrease in internal energy takes places for both the system and energy transfer. Conclusively, Work done and ΔE are negative

(b) The drop of a book in this case system from a height transfers the potential energy to kinetic energy. Therefore, both the work is done by system on the floor and internal energy of the system decreases. In conclusion, Work done and ΔE are negative

(c)  A father pushing daughter on swing which is system implies that he applied some force therefore transferring energy from the source to system. This means the internal energy of the system increases and so both the work done and ΔE are positive

5 0
3 years ago
Based on the information in the graph, which atom listed below is the most stable?
puteri [66]
Iron-56 has the greatest binding energy per nucleon while Hydrogen-3 has the lowest based on the information in the graph of average binding energy per nucleon against number of nucleons in nucleus. We know that the the greater the amount of binding energy per nucleon the greater the nuclear stability is, thus Iron-56 is the most stable atom among Helium-4, Uranium-238 and Hydrogen-3.
3 0
4 years ago
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A charged particle is surrounded by an electric field and a magnetic field
zlopas [31]

Answer:

yeah

Explanation:

electric fields help the charged particles interact

and isn't magnetic field the same as electric field.

7 0
3 years ago
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What type of matter is 10 grams of calcium?<br><br> plz help me begging
castortr0y [4]

Answer:

A pure element.

Explanation:

Calcium, being whatever weight, is a pure element.

<em>Hope this helped! Have a good day.</em>

8 0
3 years ago
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Nhận xét về nét riêng trong cách thể hiện tình yêu của xuân quỳnh qua 3 khổ thTrong thí nghiệm về giao thoa sóng trên mặt nước g
WINSTONCH [101]

Answer:

sorry bro I can't understand this language so you can ask from the Wikipedia

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3 years ago
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