![subject](/tpl/images/cats/fizika.png)
Physics, 16.12.2019 22:31 felipe9086
What type of electromagnetic radiation is associated with the peaks in this spectrum?
![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, 21.06.2019 18:10
Scientists use laser range-finding to measure the distance to the moon with great accuracy. a brief laser pulse is fired at the moon, then the time interval is measured until the "echo" is seen by a telescope. a laser beam spreads out as it travels because it diffracts through a circular exit as it leaves the laser. in order for the reflected light to be bright enough to detect, the laser spot on the moon must be no more than 1.0 km in diameter. staying within this diameter is accomplished by using a special large-diameter laser. part a if Ξ» = 540nm , what is the minimum diameter of the circular opening from which the laser beam emerges? the earth-moon distance is 384,000 km. express your answer to two significant figures and include the appropriate units.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 19:40
An ideal spring has a spring constant (force constant) of 2500 n/m, is stretched 4.0 cm, how much elastic potential energy does it possess? (a) 3j (b) 0.00j (c) 1j (d) 2j (e) 4j
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 04:20
When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 09:50
Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.
Answers: 1
You know the right answer?
What type of electromagnetic radiation is associated with the peaks in this spectrum?...
Questions
![question](/tpl/images/cats/istoriya.png)
History, 16.04.2021 14:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.04.2021 14:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 16.04.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.04.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.04.2021 14:00
![question](/tpl/images/cats/fizika.png)
Physics, 16.04.2021 14:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 16.04.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.04.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.04.2021 14:00
![question](/tpl/images/cats/geografiya.png)
Geography, 16.04.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.04.2021 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.04.2021 14:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 16.04.2021 14:00
![question](/tpl/images/cats/ekonomika.png)
Business, 16.04.2021 14:00