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Yanka [14]
3 years ago
5

How many neutrons does element X have if it’s atomic number is 28 and it’s mass number is 81?

Physics
1 answer:
labwork [276]3 years ago
5 0

Well let’s put it this way. To find the neutrons you subtract the atomic atomic Nuremberg from the atomic mass. So

Mass=81-Number=28

81-28=53

Final answer is 53.

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A) Cold object will start getting hot

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A machine, modeled as a simple spring-mass system, oscillates in simple harmonic motion. Its acceleration is measured to have an
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r3t40

5 0
3 years ago
A car with a mass of 1,500 kg is accelerating at a rate of
AURORKA [14]

Answer:

The net force acting on the car is

3

×

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Explanation:

Force is defined as the product of the mass of the body and its aaceleration,

⇒

F

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m

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Substituting the above given values we get,

F

=

(

1500

k

g

)

(

2.0

m

/

s

2

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=

3000

N

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