![Mypasswordishotdog11](/avatars/32921.jpg)
Mypasswordishotdog11
24.10.2019 •
Physics
You are at the controls of a particle accelerator, sending a beam of 3.60×107 m/s protons (mass m) at a gas target of an unknown element. your detector tells you that some protons bounce straight back after a collision with one of the nuclei of the unknown element. all such protons rebound with a speed of 3.30×107 m/s. assume that the initial speed of the target nucleus is negligible and the collision is elastic.what is the speed of the unknown nucleus immediately after such a collision?
Solved
Show answers
More tips
- F Food and Cooking How to properly cook shrimp: tips from professionals...
- C Computers and Internet How to Choose a Laptop: Expert Guide and Tips...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
Answers on questions: Physics
- P Physics A frictionless disc of mass 0.50 kg is moving in a straight line across an air table at a speed of 2.4 m/s when it bumps into an elastic band stretched between two fixed posts....
- P Physics State joole s law ofheating and verifyexperimentally...
- P Physics Every morning Mr. Jason travels to school 20 miles and it takes him to get there 30 minutes. How fast was he traveling?...
- P Physics A place kicker must kick the football from a point [06] m from the goal and clear a bar 3.00 m above the ground. The ball leaves the ground with a speed of 20.0 m/s at an angle...
- P Physics Sheila lives in the seashore community of Beachview. At 6:00 a.m. one morning, she noticed that the local ocean water was at high tide. At approximately noon that same day,...
- P Physics Odyssey Quiz What does the symbol A express? OA) final measurement O B) initial measurement OC) the boiling point of water OD) the change in measurement...
- P Physics Which is the process by which plants convert light energy into chemical energy? digestion photosynthesis polymerization cellular respiration...
- P Physics Children learn to resolve conflicts from surrounding adults. Please select the best answer from the choices provided. OT OF...
- M Mathematics When is a |a|? awhen a 0. bwhen a 0. cwhen a = 0. dwhen a 0. e never. f when a is a fraction....
- E English Can you me there are 5 questions i really need ! why should you first consider the author s purpose before evaluating a work? select one: a. so that you can understand how the...
Ответ:
Explanation:
In a crash problem we must define a system, in this case it is formed by the proton and the particle with which it collides. For this system the force during cooking is internal, so the amount of movement is conserved and as it indicates that the shock is elastic, the kinetic energy is also conserved.
Before the crash
p₀ =![m_{p}](/tpl/images/0345/1276/6087d.png)
+ 0
K₀ = ½![m_{p}](/tpl/images/0345/1276/6087d.png)
² + 0
After the crash
Let's write conservation equations
½![m_{p}](/tpl/images/0345/1276/6087d.png)
² = ½ ![m_{p}](/tpl/images/0345/1276/6087d.png)
³ + ½ m vf²
We have a System of two equations with two incognitites, so it can be solved, using the relation (a + b) (a-b) = a² -b² and with a little algebra
We calculate the mass of the particle
m =
-
/
+
![m_{p}](/tpl/images/0345/1276/6087d.png)
m = (3.6 - 3.30) 10 7 / (3.6+ 3.3) 107![m_{p}](/tpl/images/0345/1276/6087d.png)
m = 4,248 10-2![m_{p}](/tpl/images/0345/1276/6087d.png)
We calculate the speed of the particle
Ответ:
its A,C,B i checked it its 100% right