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muminat
3 years ago
11

What is an alpha particle composed of?

Physics
1 answer:
kumpel [21]3 years ago
8 0

Answer:

A. Two protons and two neutrons.

Explanation:

Alpha particles are positively charged specie identical to the nucleus of Helium atom.

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The energy is 3.06 electronvolts,  E = 3.06eV

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3.06 eV = 3.06* 1.6 * 10^-19 J = 4.896 * 10^-19 J


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Debbie plotted a graph to show how the mass of aluminium rivets affected the distance the cup moved down.
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26

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Two cars are traveling along a straight road. Car A maintains a constant speed of 95 km/h and car B maintains a constant speed o
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Answer

given,

Speed of car A = 95 Km/h

                         = 95 x 0.278 = 26.41 m/s

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Distance between Car A and B at t=0 = 41 Km

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distance = s x t

26.41 t + 41000 = 33.64 x t

7.23 t = 41000

t = 5670.82 s

time taken by Car B to cross Car A is equal to t = 5670.82 s

distance traveled by car A

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b) distance travel by the car B in 30 s after overtaking car A

   D' = s x t = 33.64 x 30 = 1009.2 m = 1 Km  

8 0
2 years ago
You are watching an object that is moving in shm. when the object is displaced 0.600 m to the right of its equilibrium position,
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It should take at least 4.50

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The stars, Rigel and Betelgeuse, are both found in the constellation, Orion. Rigel is a blue supergiant, and Betelgeuse is a red
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