Answer:
the answer to this question is 288
Answer:

Explanation:
The differential equation for given is given as

integrating above equation we have
ln(T-T_s) = -kt + C
At t = 0 , T(0) = 60

2.99 = C
At t =1 , T(1) = 40.49887

- k = -3.687
So we have


Answer is 2.19 g of radon will remain in the sample after 4 half-lives
Answer:
A. The energy is not truly lost: it transforms into forms that are not easily put to use.
Explanation:
This is due to the fact that when we use energy, it seems to have disappear, but it really hasn't. In fact, when we use energy, it is changing into another form that has to be converted in order for energy to be present once again.
The amount of energy that a wave may transfer to a unit area of a surface each second is measured as the wave's intensity. Watts per square meter is a unit used to express intensity. A sound wave's frequency is equal to its rate of vibration, and its intensity is determined by its amplitude.
<h3>What is the intensity of sound waves affect the frequency?</h3>
The energy of a vibration is quantified in decibels as intensity or loudness (dB). A sound has a high intensity if it is loud.
Therefore, perceive noise as louder the higher the frequency, although frequency does not indicate how loud a sound is.
Learn more about sound waves here:
brainly.com/question/1585667
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