2 years ago

Describe the basic particle from which all elements are made

1 answer:

6 0

All of the elements are made up of atoms. Every atom is made up of 3 subatomic particles known as the electrons, protons and neutrons. Electrons are negatively charged particles while the protons are the positively-charged particles. Lastly, neutrons do not have any charge.

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A train brakes from 25 m/s to rest in 30 sec. What is its deceleration?

givi [52]

Answer:

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Explanation:

a = v \ t

a = -25 \ 30 = -0.833 m\s^2

the object is slowing down 0.83 meter every second

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2 years ago

What is the radius of the Earth?

ki77a [65]

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A father is trying to teach his child to ice skate. As the child stands still, the father pushes him forward with an acceleratio

rjkz [21]

Hi there!

We can use Newton's Second Law:

$\Sigma F = ma$

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m = mass (kg)

a = acceleration (m/s²)

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2 years ago

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shtirl [24]

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3 years ago

Read 2 more answers

6. A child tugs on a rope attached to a 0.62-kg toy with a horizontal force

ser-zykov [4K]

Answer:

Explanation:

Force Mass * acceleration

F = ma

a = F/m

Sum of force = 16.3N - 15.8N = 0.5N

Mass = 0.62kg

Substitute

a = 0.5/ * 0.62

a = 0.81m/s²

The acceleration of the toy is 0.81m/s²

8 0

3 years ago