![subject](/tpl/images/cats/fizika.png)
Physics, 02.08.2019 09:30 narnar5664
The space velocity of a star is 120 km/s and its radial velocity is 72 km/s. what is its tangential velocity?
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Physics
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 05:00
Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 22:30
Atennis player used a tennis racket to hit a tennis ball with a mass of 0.25 kg with a force of 5.25 newtons. how does the force the tennis racket exerted on the tennis ball compare with the force the tennis ball exerted on the tennis racket? a. the force of the tennis racket on the tennis ball is equal in magnitude and opposite in direction to the force the tennis ball exerted on the tennis racket. b. the force of the tennis racket on the tennis ball is equal in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. c. the force of the tennis racket on the tennis ball is less in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. d. the force of the tennis racket on the tennis ball is greater in magnitude and opposite in direction as the force the tennis ball exerted on the tennis racket.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 02:30
Aproton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?
Answers: 2
You know the right answer?
The space velocity of a star is 120 km/s and its radial velocity is 72 km/s. what is its tangential...
Questions
![question](/tpl/images/cats/fizika.png)
Physics, 10.11.2020 22:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/User.png)
Engineering, 10.11.2020 22:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.11.2020 22:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.11.2020 22:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
Health, 10.11.2020 22:30
![question](/tpl/images/cats/himiya.png)
Chemistry, 10.11.2020 22:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.11.2020 22:30
![question](/tpl/images/cats/mat.png)
Mathematics, 10.11.2020 22:30
![question](/tpl/images/cats/ekonomika.png)
Business, 10.11.2020 22:30
![question](/tpl/images/cats/himiya.png)
Chemistry, 10.11.2020 22:30