![subject](/tpl/images/cats/fizika.png)
Physics, 04.02.2020 10:02 PrincessIndia
The nucleus of an atom emits a particle. the particle is equal in size to a helium nucleus. what is this particle? a) an alpha particle
b) a beta particle
c) a newton
d) a gamma ray
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/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 06:20
Clothing made of several thin layers of fabric with trapped air in between, often called ski clothing, is commonly used in cold climates because it is light, fashionable, and a very effective thermal insulator. so it is no surprise that such clothing has largely replaced thickand heavy old-fashioned coats. (a) consider a jacket made of five layers of 0.1-mm-thick synthetic fabric (k = 0.13 w/m·°c) with 1.5-mm-thick air space (k = 0.026 w/m·°c) between the layers. assuming the inner surface temperature of the jacket to be 28°c and the surface area to be 1.25 m2, determine the rate of heat loss through the jacket when the temperature of the outdoors is 0°c and the heat transfer coefficient at the outer surface is 25 w/m2·°c. (b) what would your response be if the jacket is made of a single layer of 0.5-mm-thick synthetic fabric? what should be the thickness of a wool fabric (k = 0.035 w/m·°c) if the person is to achieve the same level of thermal comfort wearing a thick wool coat instead of a five-layer ski jacket?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 07:20
If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 08:00
1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:10
Which branches of natural science include the study of an organism that lived 10 million years ago
Answers: 1
You know the right answer?
The nucleus of an atom emits a particle. the particle is equal in size to a helium nucleus. what is...
Questions
![question](/tpl/images/cats/istoriya.png)
History, 22.04.2020 05:00
![question](/tpl/images/cats/mat.png)
Mathematics, 22.04.2020 05:00
![question](/tpl/images/cats/mat.png)
Mathematics, 22.04.2020 05:00
![question](/tpl/images/cats/mat.png)
Mathematics, 22.04.2020 05:00
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.04.2020 05:01
![question](/tpl/images/cats/mat.png)
Mathematics, 22.04.2020 05:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.04.2020 05:01
![question](/tpl/images/cats/ekonomika.png)