Physics, 06.11.2019 20:31 garrettengle03

Uranium-238 undergoes alpha decay. therefore, uranium-238 will
a. remain stable
b. stay the same element
c. release charged particles and no energy
d. none of the above

Answers: 1

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Answer from: ash3246

Uranium-238 undergoes alpha decay. Therefore, uranium-238 will

A. Remain stable

B. Stay the same element

C. Release charged particles and no energy

D. None of the above

The actual answer is that it will change into a different element altogether.

Answer from: steven122048i

D.None of the above.

Explanation:

We are given that uranium-238 undergoes alpha decay.

Therefore, uranium-238 change into into new element of atomic number 2 less and mass number 4 less and releasing an alpha particle because it undergoes alpha decay

U-238 $\rightarrow$ an atome with atomic number 2 less and mass number 4 less+ helium particle with atomic number 2 and mass number 4

Alpha decay: When an element undergoes an alpha decay then it transform into an atom with atomic number 2 less and mass number 4 less due to emission of alpha particle (alpha particle means helium particle which have atomic number 2 and mass number 4)

Therefore, option A is false.

B. It is also false.Because a new atom is formed and there is no releasing of charged particle

C.There is no any releasing of charged particle and no energy.Hence, it is false.

Answer :D. None ob the above.

Answer from: Quest

your answer is, orbit around the nucleus

Answer from: Quest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

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Uranium-238 undergoes alpha decay. therefore, uranium-238 will
a. remain stable
b. sta...