![subject](/tpl/images/cats/fizika.png)
(ufsc) certa substância radioativa, que se desintegra uniformemente ao longo do tempo , tem sua quantidade ainda n? o desintegrada , após t anos, dada por m(t) = mg. 2 elevado 1_20 em que mg representa a quantidade inicial dessa substância, qual é , aproximadamente, a porcentagem da quantidade ainda n? o desintegrada , apos 40 anos em relaç? o a quantidade inicial mg? r: 25% mas quero a resoluç? o
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 00:00
Astate of matter all that has define volume and can flow is a(n)
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 06:40
How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a.the kinetic energy increases.b.the kinetic energy decreases.c.the kinetic energy remains the same.d.the kinetic energy is always zero.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 09:00
Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 09:40
(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)
Answers: 1
You know the right answer?
(ufsc) certa substância radioativa, que se desintegra uniformemente ao longo do tempo , tem sua quan...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 27.10.2020 23:20
![question](/tpl/images/cats/istoriya.png)
History, 27.10.2020 23:20
![question](/tpl/images/cats/himiya.png)
Chemistry, 27.10.2020 23:20
![question](/tpl/images/cats/mat.png)
Mathematics, 27.10.2020 23:20
![question](/tpl/images/cats/mat.png)
Mathematics, 27.10.2020 23:20
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.10.2020 23:20
![question](/tpl/images/cats/mat.png)
Mathematics, 27.10.2020 23:20
![question](/tpl/images/cats/mat.png)
Mathematics, 27.10.2020 23:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.10.2020 23:20
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 27.10.2020 23:20
![question](/tpl/images/cats/biologiya.png)
Biology, 27.10.2020 23:20
![question](/tpl/images/cats/en.png)
English, 27.10.2020 23:20
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.10.2020 23:20