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zavuch27 [327]
2 years ago
10

Trong chân không khi hai điện tích cách nhau lần lượt là d và d+10cm thì lực tương tác điện giữa chúng có độ lớn tương ứng là 2.

0-6 N và 5.10-7 N tính giá trị của d
Physics
1 answer:
Cerrena [4.2K]2 years ago
5 0

Answer:

H2O is also known as for water

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The mass of the car?
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Answer:

1050 kg

Explanation:

The formula for kinetic energy is:

KE (kinetic energy) = 1/2 × m × v² where <em>m</em> is the <em>mass in kg </em>and <em>v</em> is the velocity or <em>speed</em> of the object <em>in m/s</em>.

We can now substitute the values we know into this equation.

KE = 472 500 J and v = 30 m/s:

472 500 = 1/2 × m × 30²

Next, we can rearrange the equation to make m the subject and solve for m:

m = 472 500 ÷ (1/2 × 30²)

m = 472 500 ÷ 450

m = 1050 kg

Hope this helps!

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2 years ago
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An element’s atomic number is 35. how many portions would an atom this element have
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35 protons are present in an element whose atomic number is 35.

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