Students in science class were asked to do an experiment with a can of soda. They placed an unopened can of soda on a digital sc
ale and recorded the initial mass as 340 g. They then opened the soda can and left it open for a day. The following day, the students took the mass of the soda can again and noticed that it was only 332g. They then poured some of the soda into a glass and observed that it was no longer fizzy.
1 answer:
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Answer:
Explanation:
<u>Data</u>
<u>mass m= 100g</u>
<u>Length L= 5cm</u>
<u>we can use:</u>
<u>gm-kL= 0</u>
<u>divide both side by m</u>
<u>g - </u><u>=0</u>
<u>where</u>
=
^{2}
so now
=
square both side
We can apply:
u(t)=Acoswt +Bsinwt
u(t)=Acos14t +Bsin14t
u(0)=0 where A=0
therefore
u(0) = Bsin14t
(0) = 10 ⇒ 10=14B ⇒ B=
B=
so now u(t)=sin14t
so t will be:
t=
t=
t=0.22 seconds
The correct answer is option A.
The Gamma waves emitted from radioactive decay have a frequency of around 10¹⁹ Hz, which is much greater compared to the alpha of beta waves.
The frequency is directly proportional to the energy of the waves as given by the equation,
Where E is the energy, h is the Planck's constant, and f is the frequency.
Thus the gamma waves have a lot of energy compared to the other options.
Thus the correct answer is option A.