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morpeh [17]
3 years ago
12

If Mr. Kirwan’s pet Fluffy the Wonder Hamster rides his unicycle at a rate of 5m/s to the

Physics
1 answer:
-BARSIC- [3]3 years ago
4 0
The condition that would induced the seer or observer to see that the pet hamster is moving at 5 m/s is when the train is also moving at that speed. This is because the unicycle will only allow limited vision to the seer thinking that the pet hamster is not moving at that speed. 
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A.Ganerators

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Can an object's average velocity equal zero when object's speed is greater than zero.
notsponge [240]
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3 years ago
What is the electric field at the position (x2,y2)=(−5.0cm , 0cm) in component form?
insens350 [35]

Complete Question: A +10 nC charge is located at the origin. What is the electric field at the position (x2,y2)= (-5.0cm, 0cm)? Write electric field vector in component form.

E2x, E2y=? N/C

Answer:

Ex = -3.6*10⁴ N/C   Ey=0

Explanation:

As the charge producing the field is positive, the direction of the field, which is the one that would take a positive test charge located in the point of interest, will be away from this point, pointing to the left.

If we choose the positive direction to be to the right, the electric field component along the x-axis will be negative.

The magnitude of the field can be obtained applying the electric field definition, and the Coulomb's Law to the charge in the origin, as follows:

E = k*q/r² = 9*10⁹N*m²/C²*10⁻⁸C/(0.05)² m² = 3.6*10⁴ N/C

As the electric field follows the same line as the electric force, it has only component on the x axis, so:

Ex = -3.6*10⁴ N/C  

Ey = 0

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