![subject](/tpl/images/cats/fizika.png)
Physics, 15.07.2020 21:01 brisamauro27
A positive kaon (K+) has a rest mass of 494 MeV/c² , whereas a proton has a rest mass of 938 MeV/c². If a kaon has a total energy that is equal to the proton rest energy, the speed of the kaon is most nearly:.
A. 0.25c
B. 0.40c
C. 0.55c
D. 0.70c
E. 0.85c
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Physics
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 09:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 12:00
Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 17:00
Adiver named jacques observes a bubble of air rising from the bottom of a lake (where the absolute pressure is 3.50 atm) to the surface (where the pressure is 1.00 atm). the temperature at the bottom is 4.00 ∘c, and the temperature at the surface is 23.0 ∘c.what is the ratio of the volume of the bubble as it reaches the surface (vs) to its volume at the bottom (vb)? if jaques were to hold his breath the air in his lungs would be kept at a constant temperature. would it be safe for jacques to hold his breath while ascending from the bottom of the lake to the surface?
Answers: 1
You know the right answer?
A positive kaon (K+) has a rest mass of 494 MeV/c² , whereas a proton has a rest mass of 938 MeV/c²....
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
Physics, 17.11.2019 16:31
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.11.2019 16:31
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.11.2019 16:31
![question](/tpl/images/cats/mat.png)
Mathematics, 17.11.2019 16:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/en.png)
English, 17.11.2019 16:31
![question](/tpl/images/cats/mat.png)
Mathematics, 17.11.2019 16:31
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 17.11.2019 16:31
![question](/tpl/images/cats/mat.png)
Mathematics, 17.11.2019 16:31
![question](/tpl/images/cats/istoriya.png)
History, 17.11.2019 16:31
![question](/tpl/images/cats/biologiya.png)
Biology, 17.11.2019 16:31
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
Physics, 17.11.2019 16:31
![question](/tpl/images/cats/en.png)