3 years ago

A Sodium ion has a positive charge because it has

Physics

2 answers:

Alla [95]3 years ago

5 0

Answer:

One electron in it's outer shell

kolbaska11 [484]3 years ago

4 0

Answer:

This is because the 11 positive protons and 10 negative electrons end up with an overall charge of +1.

Explanation:

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It is noted that a sample of 134La with a half-life of 6.5 minutes has an activity of 2.6 Ci. What was its activity 72 minutes a

stira [4]

Answer:

36//

Explanation:

(½)^t

(½)^72

72/2=36//

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3 years ago

The distance between the centers of the wheels of a motorcycle is 146 cm. The center of mass ofthe motorcycle, including the rid

Vitek1552 [10]

Answer:

9.12267515924 m/s²

Explanation:

Here the moment created by the wheels and the moment created by the center of gravity will balance each other.

h = Height of the center of mass = 78.5 cm

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g = Acceleration due to gravity = 9.81 m/s²

a = Horizontal acceleration

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$mgd=Fh\\\Rightarrow mgd=mah\\\Rightarrow a=\dfrac{gd}{h}\\\Rightarrow a=\dfrac{9.81\times \dfrac{146\times 10^{-2}}{2}}{78.5\times 10^{-2}}\\\Rightarrow a=9.12267515924\ m/s^2$

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3 years ago

Which process is a form of mechanical weathering?

ICE Princess25 [194]

I would assume it is Oxidation since it would have an impact on metals t hat oxidizes in the weather

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3 years ago

An unbalanced force of 20N acts on a 4.0kg mass what is it's acceleration

tankabanditka [31]

Hi there!

According to Newton's second law:

∑F = m · a, where:

∑F = net force (N = kgm/s²)

m = mass (kg)

a = acceleration (m/s²)

Rearrange to solve for acceleration:

F/m = a

20N / 4.0kg = 5 m/s²

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3 years ago

What is a physical combination of two or more substances that are blended together without forming a new substance?

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It is called a mixture.

Explanation:

A mixture is a physical combination of 2 or more substances that are blended together without forming a new substance.

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3 years ago