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:
Explanation:
I don't know what values you have measured, or what <em>Ladybug Revolution</em> is, but I can show you the equations for rotational motion.
Angular displacement is:
Δθ = ω₀ t + ½ αt²
where ω₀ is the initial angular velocity, α is the angular acceleration, and t is time.
Assuming the radius is constant, the arc length is radius times angular displacement.
s = rΔθ
Using the equation for angular displacement, we can see that if two points have the same angular velocity and same angular acceleration, then they also have the same angular displacement.
<span>Murphy's law is an adage or epigram that is typically stated as: Anything that can go wrong, will go wrong.
</span><span>
</span>
Answer:
(a) =34.0J
(b) = 13.038m/s
(c) =
Explanation:
(a) mass (m) =0.45kg
Height(h) =8.5m
Gravity (g) =10m/s^2
But P. E (Potential Energy) = mass × gravity × height
P. E = 0.45×10×8.5
P. E = 34.0J
(b) using v^2=u^2 - 2gs
Where v = final velocity
u= initial velocity
g = gravity
s =distance
But at maximum height <u>v</u><u> </u>=0
0^2= u^2 - 2gs
Transpose u^2 we have
u^2 = 2gs
u^2 = 2×10×8.5
u^2 = 170
u = square root of 170
u = 13.038m/s
