![subject](/tpl/images/cats/fizika.png)
Physics, 09.10.2021 15:50 karamalqussiri478
Which of the following wavelengths of light from distant stars and other objects are
observable from the ground? (More than one may be observable)
(a) Ultraviolet (400 to 1 nm wavelength)
(b) Gamma-ray wavelength (0.001 nm and shorter wavelength)
(c) Visible (Optical) (700 to 400 nm wavelength)
(d) X-ray wavelength (1 to 0.001 nm wavelength)
(e) Near-infrared (10 ffm to 0.7 ffm wavelength)
(f) Long-wavelength radio (100 km to 10 m wavelength)
(g) Far- and mid-infrared (about 100 to 10 ffm wavelength)
(h) Intermediate-wavelength radio (10 m to 1 cm wavelength)
(i) Microwave radio (1 cm to about 100 ffm wavelength)
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/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 07:00
Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?
Answers: 1
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:20
Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 17:40
Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.
Answers: 2
You know the right answer?
Which of the following wavelengths of light from distant stars and other objects are
observable fr...
Questions
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 13.08.2021 07:20
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 13.08.2021 07:20
![question](/tpl/images/cats/en.png)
English, 13.08.2021 07:20
![question](/tpl/images/cats/pravo.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 13.08.2021 07:20
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 13.08.2021 07:20
![question](/tpl/images/cats/en.png)
English, 13.08.2021 07:20
![question](/tpl/images/cats/en.png)
English, 13.08.2021 07:20
![question](/tpl/images/cats/en.png)
English, 13.08.2021 07:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/ekonomika.png)
Business, 13.08.2021 07:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 13.08.2021 07:30
![question](/tpl/images/cats/biologiya.png)
Biology, 13.08.2021 07:30
![question](/tpl/images/cats/mat.png)
Mathematics, 13.08.2021 07:30