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expeople1 [14]
3 years ago
9

What is an electron?

Physics
2 answers:
Tasya [4]3 years ago
8 0

An electron is a negative particle outside the nucleus.

Electrons orbit the protons and neutrons in the nucleus.

Tanzania [10]3 years ago
5 0

B. A negative particle outside the nucleus

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A person, with his ear to the ground, sees a huge stone strike the concrete pavement. A moment later two sounds are heard from t
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271.095 m

Explanation:

✓ Let speed of sound in air that was given as (343 m/s) be represented as (Vi)

✓( speed of sound in concrete that was given as (3000 m/s ) be debited as (Vc)

✓ Let the distance travelled by the sound = s

✓duration of Time that exist between heard of sounds = 0.70s

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[(3000s - 343s)]/1029000 = 0.70

2657s /1029000 = 0.70

Making " s" subject of the formula

s= (1029000 × 0.70)/2657

s=720300/ 2657

s= 271.095 m

Hence, The impact took place at a distance of 271.095 m away from the person.

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