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IRINA_888 [86]
3 years ago
13

What is the mass number of an atom with 3 protons, 4 neutrons, and 3 electrons

Physics
1 answer:
snow_tiger [21]3 years ago
5 0

Mass number = no. of protons + no. of neutrons

 so, it would be, 3+4 = 7

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The following three questions refer to a situation in which a driver is in a car that crashes into a solid wall. The car comes t
Andreas93 [3]

Answer:

1) p₀ = 45000 N / s ,   p₀ '= 1800 , b)  I = -45000 N s ,  I = 1800 Ns

Explanation:

Impulse equals the change in momentum

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because the end the car is stopped

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2) of the momentum change impulse ratio

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        person

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3) the object that give the momentum to stop the wall motoring

The person is stopped by the impulse given by the car

a) This area is the one that absorbs most of the vehicle impulse

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3 years ago
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3 years ago
A force of 30 N stretches a very light ideal spring 0.73 m from equilibrium. What is the force constant (spring constant) of the
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Answer:

Explanation:

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30N = k * 0.73

k = 30N / 0.73

k = 41.1

5 0
2 years ago
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