work done = force * distance
work = 62 * 2 = 124 j
Answer:
c) 2
Explanation:
When a charged particle is moving in a region with a magnetic field, it experiences a force perpendicular to the direction of motion, therefore it starts moving with a circular motion.
The force experienced by the particle which is moving perpendicular to the field is given by

where
v is the speed of the particle
q is the charge of the particle
B is the strength of the magnetic field
Here we have:
- A proton, which has
(charge)
(speed of the proton)
B is the magnetic field
So the force experienced by the proton is
(1)
- An alpha particle, which has
(charge)
(speed of the alpha particle)
B is the magnetic field
So the force experienced by the alpha particle is

Here we are told that the force experienced by the two particles is the same, so:

And so we get:

Solving for the ratio between their speed, we find:

Answer:
Fluid pressure from gravity is the weight of the fluid above divided by the area it is pushing on. Fluid pressure applies in all directions. Internal pressure of an object equals the external fluid pressure, otherwise the object could be crushed. Wind and heating can also create pressure.
Explanation:
The answer is D since work done must have displacement..if theres force but no displacement there will be no work done based on W=Fs
Answer:
For 6.0 eV
0.5 nm, 1.45*10^6 m/s, 6.17*10^10 m/s, 1.45*10^6 m/s
For 600 eV
1.26*10^-3 nm, 2.66*10^8 m/s, 3.37*10^8 m/s, 2.66*10^8 m/s
Explanation:
See attachment for calculation