A magnetic dipole is a physical thing, whereas magnetic moment is a number used to quantify the strength of the thing's dipole nature.
The _____ with less density will sink and the higher density ____ will rise
Answer:
20 m/s
Explanation:
The force experienced by a charged particle in an electric field is given by
where, in this problem:
is the charge of the particle
E is the electric field
The electric field here has components:
So the components of the force experienced by the particle are:
Now we can find the components of the acceleration experienced by the particle, using Newton's second law of motion:
where
m = 4.0 g = 0.004 kg is the mass of the particle
The 3 components of the acceleration are:
Now we can find the components of the velocity of the particle at time t using the suvat equation:
where:
are the initial components of the velocity
Therefore, at t = 2.0 s, we have:
And so, the speed of the particle is the magnitude of the final velocity:
Answer:
Liquid's index of refraction, n₁ = 1.27
Explanation:
It is given that,
The critical angle for a liquid in air is,
We have to find the refractive index of the liquid. Critical angle of a liquid is defined as the angle of incidence in denser medium for which the angle of refraction is 90°.
Using Snell's law as :
Here,
Where
n₂ = Refractive index of air = 1
n₁ = refractive index of liquid
So,
n₁ = 1.269
or n₁ = 1.27
Hence, the refractive index of liquid is 1.27