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LenKa [72]
3 years ago
14

Type the correct answer in the box. Spell all words correctly.

Physics
1 answer:
belka [17]3 years ago
4 0

Answer: marine current

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. If measurements of a gas are 75L and 300 kilopascals and then the gas is measured a second time and found to be 50L, describe
julia-pushkina [17]
By Boyle's law:

P₁V₁ = P₂V₂

300*75 = P<span>₂*50

</span>P<span>₂*50= 300*75
</span>
P<span>₂ = 300*75/50 = 450
</span>
P<span>₂ = 450 kiloPascals.

The pressure has increased as a result of compression of gas.

Boyle's Law supports this observation.</span>
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What is the momentum of a 1, 500 kg car traveling at 3m/s?
ruslelena [56]
4,500 kgm/s bc 1,500x3
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Scientific observations should be reported with bias as long as they benefit a scientist's employer
Ira Lisetskai [31]
False, there are always pros and cons to research
8 0
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1- What the relation ship between temperature and density of liquids?
defon

Answer:

Explanation:

1- Density increase as the temperature decreases. This is the reason why liquid water is more dense than solid water.

2- The only things that affect the period of a simple pendulum are its length and the acceleration due to gravity.

3- not really sure for that one...I will think about that.

4- same reason for number 3

7 0
3 years ago
Chứng minh V=kq/r từ mối liên hệ giữ E và V
Marat540 [252]

Answer:V=Aq=KQr

Explanation:

Không biết V bạn kí hiệu ở đây là gì nhỉ? Có phải là điện thế?

Điện thế tại 1 điểm trong điện trường được định nghĩa là công làm vật dịch chuyển từ vị trí đó đến vô cùng. V = A/q

Chứng minh thì được, nhưng chỉ e bạn không có hiểu biết về nguyên hàm, tích phân nên không hiểu.

- Xét tại vị trí cách điện tích Q một đoạn x, khi đó điện tích q sẽ chịu 1 lực: dF=KQ.qx2

Điện tích q dịch chuyển 1 khoảng dx rất nhỏ. Khi đó công do lực điện trường gây ra là:

dA=dF.dx=KQ.qx2dx

Công để dịch chuyển điện tích q từ vị trí r đến vô cùng là:

A=∫∞rdA=∫∞rKQ.qx2dx=KQ.qr−KQ.q∞=KQ.qr

Theo đúng định nghĩa: V=Aq=KQr

4 0
3 years ago
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