Answer:0.478 c
Explanation:
Given
mass of lighter Particle
mass of heavier Particle
speed of lighter particle
Let speed of heavier particle
and Momentum of the particle is given by
as momentum is conserved therefore
And walk another 25m west
When particles in a substance slow down, we can infer that the object is getting colder. Why we can infer this:
1. Kinetic energy, is energy due to motion, therefore if there is no motion, there is no kinetic energy.
2. The colder an object get, the closer it becomes to having it's particles stopping completely, eventually at the absolute zero.
3. As kinetic energy increases, particles move faster. Kinetic energy usually increases when an object gets warmer. As kinetic energy decreases, particles move slower. Kinetic energy usually decreases when an object gets colder.
So, with this information, we now how and why the kinetic energy slows down.
Answer:
a) The sign of the charge is positive.
b) The magnetic force on the particle is 0.050 newtons.
Explanation:
The magnetic force F on a moving charge with velocity v passing through a magnetic field B is:
(1)
a)
Because it is a cross product, we can find the direction of the force using the right-hand rule, that is too the direction of the movement. We have two possibilities here because the velocity vector and magnetic field are perpendicular: the particle deflects towards east or toward west, which depends on the charge of the particle. Note that if you put your right hand fingers, except thumb, pointing towards north (direction of velocity) and later close them in the direction of the magnetic field, if you maintain your thumb perpendicular to this movement it will point towards east (See figure), so that will be de direction of the force if the charge is positive, but if the charge is negative, the direction will be opposite (towards west). So the charge has to be positive to deflects towards east.
b)
Now by 1: