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3 years ago

If two protons and two neutrons are removed from the nucleus of an oxygen atom, a nucleus of which element remains?

Physics

1 answer:

trapecia [35]3 years ago

5 0

Answer:

Carbon 12

Explanation:

I don't 100% know what to put here, but...

When you remove the nucleus from an oxygen atom, almost everything of the base oxygen is essentially stripped away. Since almost everything is made of carbon, and Carbon 12 is one of the most common forms of Carbon, Carbon 12 would be what is left.

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A car moves around a circular track at a constant rate. What must change?

suter [353]

B. only its velocity should change

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3 years ago

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Is 250 000 miles from the earth to the moon" is a qualitative<br> Observation<br> TRUE<br> Or false

lys-0071 [83]

Answer:

True

Explanation:

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3 years ago

A boy jumps from a wall 3m high. What is an estimate of the change in momentum of the boy when he lands without rebounding?

EastWind [94]

The answer is D. Because the boy jump 3 high

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3 years ago

- Una carga de -5x10-6 C está situada a 20cm delante de otra

saul85 [17]

Answer:

$F = 5.625\,N$ (Fuerza de repulsión/Repulsive force)

Explanation:

La fuerza ejercida entre las dos partículas se calcula por la Ley de Coulomb (The force exerted between the two particles is determined by Coulomb's Law):

$F = k \cdot \frac{q_{1}\cdot q_{2}}{r^{2}}$

Donde (Where):

$k$ - Constante electrostática, medido en $\frac{N\cdot m^{2}}{C^{2}}$ (Electrostatic constant, measured in $\frac{N\cdot m^{2}}{C^{2}}$ ).

$q_{1}$ , $q_{2}$ - Magnitudes de las cargas de cada partícula, medidos en Coulombs. (Magnitudes of charges from each particle, measured in Coulombs).

$r$ - Distancia entre las partículas, medida en metros.

La fuerza electrostática es (Electrostatic force is):

$F = \left(9\times 10^{9}\,\frac{N\cdot m^{2}}{C^{2}} \right)\cdot \frac{(5\times 10^{-6}\,C)\cdot (5\times 10^{-6}\,C)}{(0.20\,m)^{2}}$

$F = 5.625\,N$

Dado que las partículas tienen el mismo signo de carga, la fuerza es de repulsión. (Given that both particles have the same charge sign, the force is of repulsive nature)

3 0

3 years ago

Explain maximum and minimum thermometer working(answer only for points will be reported)

belka [17]

Explanation:

Six’s Maximum and Minimum thermometer is a U shaped parallel tube made up of glass. One side registers the maximum temperature and the other side records the minimum temperature.
The bend at the bottom of the thermometer contains mercury which moves up or down based on the expansion and contraction of alcohol.
When the temperature rises, the alcohol expands and pushes the mercury up the maximum column. This also pushes the mercury down in the minimum column.
Similarly, when the temperature falls, the alcohol contracts and pulls the mercury up in the minimum column resulting in a fall of mercury in the maximum column.
The steel indexes are located on the surface of mercury. They move along with the flow of mercury up and down.
When the temperature reaches its maximum and minimum limits, the metal indexes remain at that place. This helps in recording the maximum and minimum temperatures of the day.

6 0

3 years ago