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Keith_Richards [23]
3 years ago
14

Can someone please help me with this one

Physics
1 answer:
Brilliant_brown [7]3 years ago
5 0

Answer:

in left

Explanation:

Hope it will help

<em>p</em><em>l</em><em>e</em><em>a</em><em>s</em><em>e</em><em> </em><em>m</em><em>a</em><em>r</em><em>k</em><em> </em><em>a</em><em>s</em><em> </em><em>a</em><em> </em><em>b</em><em>r</em><em>a</em><em>i</em><em>n</em><em>l</em><em>i</em><em>s</em><em>t</em><em>s</em>

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A meter stick has a mass of 0.30 kg and balances at its center. When a small chain is suspended from one end, the balance point
Nata [24]

Answer:

M L1 = m L2       torques must be zero around the fulcrum

M = m L2 / L1 = .3 kg * 28 cm / 22 cm = .382 kg

7 0
3 years ago
Diamond is the one mineral in the world that cannot be scratched by any other mineral. Therefore, we refer to diamond as the ___
mart [117]

Answer:

hardest

Explanation:

Diamonds are known as the hardest naturally occurring substance known.

4 0
3 years ago
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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
Chemical energy sources are often portable and provide large amounts of energy. Fossil fuels are one kind of chemical energy sou
Tems11 [23]

For an individual to reduce his or her carbon footprint, they can:

  • Reduce the use of automobile
  • switch other renewable energy sources like solar energy

Hydrogen fuels are clean energy sources and should replace fossil fuels.

Carbon footprint should be regulated by law in order to reduce the amount of greenhouse gases.

<h3>What is a carbon footprint?</h3>

A carbon footprint is the measure of the total amount of greenhouse gases that are emitted into the atmosphere each year by an individual.

Greenhouse gases are responsible for global warming.

For an individual to reduce his or her carbon footprint, they can:

  • Reduce the use of automobile
  • switch other renewable energy sources like solar energy

Hydrogen fuels are able to replace fossil fuels as they are clean energy sources.

An individual's carbon footprint should be regulated by law in order to reduce the amount of greenhouse gases released.

In conclusion, greenhouse gases are responsible for global warming.

Learn  more about greenhouse gases at: brainly.com/question/2241458

#SPJ1

3 0
2 years ago
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Any characteristic of matter that you can observe is a _________. <br><br><br><br><br> Plz help.
Stells [14]

Answer:

any characteristic of matter that can be observed without changing the identity of the material. Scientists call a characteristic of matter that you can detect with your senses a Physical property. color, shape, smell, taste, mass, volume, and density.

Explanation:

7 0
3 years ago
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