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vlabodo [156]
2 years ago
11

Calculate their densties in Si unit.200mg,0.0004m​

Physics
1 answer:
Kryger [21]2 years ago
3 0

Question: calculate their densties in Si unit.

200mg,0.0004m​³

Answer:

0.5 kg/m³

Explanation:

Applying,

D = m/V........................ Equation 1

Where D = density, m = mass, V = volume.

From the question,

Given: m = 200 mg = (200/1000000) kg = 2.0×10⁻⁴ kg, V = 0.0004 m³ = 4.0×10⁻⁴ m³

Substitute these values into equation 1

D = (2.0×10⁻⁴ kg)/(4.0×10⁻⁴)

D = 2/4

D = 0.5 kg/m³

Hence the density in S.I unit is 0.5 kg/m³

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Svet_ta [14]

Answer:

See below ~

Explanation:

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Volume of the box is <u>1331 cm³</u>. (11³)

Maximum mass of sand will be 1331 g. [because 1331/1331 = 1 g/cm³]

  • Volume of sand = Mass of sand / Density of sand
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If the volume of sand is <u>greater than 380.29 cm³</u>, the box will sink in water.

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3 years ago
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RUDIKE [14]

Answer:

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2 years ago
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alexandr1967 [171]
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However, electrons act differently. There is no "Strong Force" just the electromagnetic force. So, they keep a great distance from each other. 

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BTW, the reason why electrons and protons act differently when they are close together is because protons are made up of smaller particles the carry this Strong Force. For electrons, there is no smaller constituent. And therefore, all you have is the electromagnetic force to influence it. That's it.

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