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Maurinko [17]
3 years ago
9

Summarize why people were unsuccessful over 1,000 years ago when they tried to transform lead into gold. What process would they

have needed to complete in order to have been successful?
Physics
1 answer:
JulijaS [17]3 years ago
6 0

Answer:

The answer for this is that for converting lead into gold we need to change the amount of protons in lead which with help in converting it to the gold.

Explanation:

Lead (atomic number is 82) and gold (atomic number is 79) are characterized by the protons density which they possess as components. Changing the factor involves modification of the amount of the atom (proton). It is difficult to change the amount of protons in an atom through any chemical Reaction.

Physics can, therefore, be used to attach or subtract protons and thereby turn one part into another. Since lead is solid, it is pushed out and the gold is surpassed.

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100 POINTS FOR CORRECT ANSWER/EXPLANATION
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Answer:

6 N

Explanation:

Let's start with the small block m on top.  There are four forces:

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Now let's look at the large block M on bottom.  There are seven forces:

Normal force N₁ pushing down (opposite and equal from block m),

Friction force N₁μ pushing right (opposite and equal from block m),

Weight force Mg pulling down,

Tension force T pulling right,

Applied force F pulling left,

Normal force N₂ pushing up,

and friction force N₂μ pushing right (opposing the direction of motion).

So you've correctly identified the free body diagrams.

Now apply Newton's second law.  Sum of forces in the y direction for block m:

∑F = ma

N₁ − mg = 0

N₁ = mg

Sum of forces in the x direction:

∑F = ma

T − N₁μ = 0

T = N₁μ

T = mgμ

Sum of forces in the y direction for block M:

∑F = ma

-N₁ − Mg + N₂ = 0

N₂ = N₁ + Mg

N₂ = mg + Mg

Sum of forces in the x direction:

∑F = ma

N₁μ + T − F + N₂μ = 0

F = N₁μ + T + N₂μ

F = mgμ + mgμ + (mg + Mg)μ

F = gμ(3m + M)

Since M = 2m:

F = 5gμm

Plug in values:

F = 5 (10 m/s²) (0.400) (0.300 kg)

F = 6 N

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Answer:

v = 1 m/s

Explanation:

from the principle of conservation of momentum, we have following relation

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putting all value in the above equation

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