![subject](/tpl/images/cats/fizika.png)
Physics, 25.12.2019 10:31 potatonene
What are examples of devices that use electromagnetic waves? check all that apply. fm radios microwaves tv remote controls alarm clocks x-rays
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 22:00
Why do electron microscopes have higher resolving power than light microscopes?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:10
In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 17:40
You throw a baseball directly upward at time =0 at an initial speed of 14.9 m/s. what is the maximum height the ball reaches above where it leaves your hand? ignore air resistance and take =9.80 m/s2.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 23:50
An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40×10−12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?
Answers: 2
You know the right answer?
What are examples of devices that use electromagnetic waves? check all that apply. fm radios microw...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 28.02.2021 04:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.02.2021 04:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.02.2021 04:00
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 28.02.2021 04:00
![question](/tpl/images/cats/en.png)
English, 28.02.2021 04:00
![question](/tpl/images/cats/mat.png)
Mathematics, 28.02.2021 04:00
![question](/tpl/images/cats/istoriya.png)
History, 28.02.2021 04:00
![question](/tpl/images/cats/ekonomika.png)
Business, 28.02.2021 04:00
![question](/tpl/images/cats/mat.png)
Mathematics, 28.02.2021 04:00
![question](/tpl/images/cats/biologiya.png)
Biology, 28.02.2021 04:00
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.02.2021 04:00
![question](/tpl/images/cats/biologiya.png)
Biology, 28.02.2021 04:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.02.2021 04:00
![question](/tpl/images/cats/mat.png)
Mathematics, 28.02.2021 04:00