In a certain velocity selector consisting of perpendicular electric and magnetic fields, the charged particles move toward the e
ast, and the magnetic field is directed to the north. What direction should the electric field point?
1 answer:
Answer:
Down.
Explanation:
In the given question, the charged particle is moving towards the east direction. Suppose east direction towards the positive x-axis.
And the magnetic field directed towards to the north direction. Suppose north direction towards the positive y-axis.
Therefore force of magnetic field can be calculate by the formula,
Therefore force of the magnetic field is in positive z-axis means in an upward direction.
Now the force on the electric field must be in the opposite direction means it is in a downward direction.
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Answer:
Explanation:
Given data
Baseball mass m₁=0.15 kg
initial speed v₁=0
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final speed v₂=230 m/s
To find
height h=?
Solution
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Now from the conservation of mechanical energy