Aproton starting from rest travels through a potential of 1.0 kv and then moves into a uniform 0.040-t magnetic field directed perpendicular to the path of the proton. what is the radius of the proton’s resulting orbit?

0.114m

Explanation:

From the general expression for the radius of the proton's resulting orbit, we have

where q is is the charge of the proton

m is the mass of the proton  

B is the magnetic field  

and v i the speed.

to determine the speed, we use the expression

Kinetic Energy=

where V  is the voltage value i.e 1.0kv

and v is the speed

Hence, from simple rearrangement we have the speed v to be

if we substitute value, we have

carrying out careful arithmetic we arrive at

.

using the value for the speed in the expression for the radius of the orbit as stated earlier, we have

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )