Explanation:
The magnetic force acting on the charged particle in magnetic field is given by :
Here,
q is the charged particle
v is the speed of particle
B is magnetic field
is the angle between the v and B.
The correct statements for the magnetic force are :
- An electric charge moving perpendicular to a magnetic field experiences a magnetic force. In this case,
. It will experience maximum force. - The direction of the magnetic force acting on a moving electric charge in a magnetic field is perpendicular to the direction of motion.
- A magnetic force is exerted on an electric charge moving through a uniform magnetic field.
- The direction of the magnetic force acting on a moving charge in a magnetic field is perpendicular to the direction of the magnetic field.
Answer:
Δp = -2 p₀
Explanation:
The momentum is defined by
p = m v
In this case we write the initial and final momentum, we take as positive the direction towards the wall.
p₀ = m v
p_f = m (-v)
the negative sign is because the car is bouncing off the wall
the change of the moment is
Δp = p_f - p₀
Δp = - m v - m v
Δp = -2 mv
Δp = -2 p₀
we see that the change of moment is twice the moment, in the attachment we can see the vectors of these changes and the sign indicates the direction of the change at the moment
Answer:
If instrument used has louder pitch and due to the fact that pitch depends on frequency we expect that the wave pattern on the graph would it's crest or trough contract more to represent higher frequency
<span>that's a good question. It is a amorphous solid because it expands </span>
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