Calculating Alpha Particle Velocity from Initial Nucleus Motion

AI Thread Summary
To calculate the velocity of the emitted alpha particle, the conservation of momentum principle must be applied. The initial momentum of the system is the product of the original nucleus's mass and its initial velocity. After emission, the total momentum is the sum of the new nucleus's momentum and the alpha particle's momentum. Kinematic equations and energy balance equations can aid in solving for the alpha particle's speed. A detailed attempt at the solution is required for further assistance.
Elvis
Messages
14
Reaction score
0
CAN ANYONE HELP ME ?

An automatic nucleus initially moving at 500 m/s emits an alpha particle in the direction of its velocity, and the new nucleus shows to 450 m/s. If the alpha particle has a mass of 4.0 u and the original nucleus has a mass of 222 u, what speed does the alpha particle have when it is emmited ?
 
Physics news on Phys.org
Elvis, you must show your own work and attempt at a solution before we can help you with homework/coursework problems (see the "Rules" link at the top of the page).

What are the kinematic equations of motion that you will use to solve these problems? What energy balance equations can also be of help?
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Kinetic Energy for particles (alpha decay)
Replies
2
Views
3K
Closest approach of alpha particle - two separate methods
Replies
4
Views
1K
Alpha particle close to the nucleus
Replies
3
Views
757
What is the energy of the alpha particle and recoiling nucleus?
Replies
9
Views
6K
Elastic collision between alpha particle and gold Nuclei
Replies
2
Views
3K
Calculate the kinetic energy of two alpha particles
Replies
2
Views
1K
Alpha Particle & Gold Nucleus Collision
Replies
17
Views
14K
I knowing what i'm looking for -- alpha particle colliding with lead nucleus
Replies
5
Views
5K
Radius of a lead nucleus and alpha particle
Replies
20
Views
13K
Direction of alpha particles/protons from isotope decay
Replies
3
Views
1K

Hot Threads

Recent Insights

Back
Top