Answer:
E= vB
Explanation:
If and when the charge on a rod happens to be in equilibrium, then we say that the electric force in conjunction with the magnetic force that is acting on the charge on the rod are both equal and opposite in direction. Mathematically, we say
Fe = Fm, where
Fe = qE and
Fm = qvB
If we substitute and make them equal to one another, we have
qE = qvB, and finally, on simplifying further, we have
E = vB
When charges in a rod are in equilibrium, the magnitude of the electric field within the rod is zero. This principle stems from Gauss's law, which states that excess charge would be located on the surface of the conductor only, leaving the electric field basically zero in an equilibrium state.
The question is asking about the magnitude EEE of the electric field within a rod when the charges in the rod are in equilibrium. According to the principles of Physics, especially using Gauss's law, a key aspect to remember is that the electric field inside a conductor at equilibrium is essentially zero. This is because any excess charge would be located on the surface of the conductor only.
The magnitude of the electric field E is determined by the relationship:
E = qenc / 0
However, because the charge within the conductor, qenc, is zero in an equilibrium state, it implies that the magnitude of the electric field within the rod, E, is also zero. Hence, when a rod is in equilibrium, the magnitude of the electric field within the rod is zero.
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Answer:
Observed time, t = 5.58 s
Explanation:
Given that,
Speed of light in a vacuum has the hypothetical value of, c = 18 m/s
Speed of car, v = 14 m/s along a straight road.
A home owner sitting on his porch sees the car pass between two telephone poles in 8.89 s.
We need to find the time the driver of the car measure for his trip between the poles. The relation between real and observed time is given by :
t is observed time.
So, the time observed by the driver of the car measure for his trip between the poles is 5.58 seconds.
0.056320
0.56320
5,632
56,320
Answer:
The answer would be D 56,320
Explanation:
Answer: 7kg I think or 6
Explanation:
Answer:
4 m/s^2
Explanation:
(0.5m/s * 4)+2 m/s
El problema es un caso generalmente tipico en optica concerniente a Apparent depth vs real depth
We see the objects closer than their real depth to the surface. We see objects only if the rays coming from them reaches our eyes.
The equation is given by,
Where,
Apparenth depth
Real depth
Refractive index of the medium of object
For water is equal to 1.33
I attach an image of the theory that could help clarify the measurements.
We have,
Therefore the apparent distance between the front wall of the aquarium to the fish is 7.5cm
B) The distance between fish and mirror is given by,
So we have that real distance from the front wall of to image of fish is
Applying our equation we have that,
Therefore the apparent distance from the front wall of the aquarium to the image of the fish is 45.1cm
The apparent distance from the front of the aquarium to the fish is 10 cm, and the apparent distance from the front of the aquarium to the image of the fish in the mirror is 35 cm.
Part A: When observing the fish in the aquarium, the apparent distance from the front wall of the aquarium to the fish is simply the actual distance. This is because the observation is being made directly through the glass which has negligible thickness. Therefore, the apparent distance to the fish is 10 cm.
Part B: The image of the fish in the mirror will seem farther away than the fish itself. This is due to the fact that light reflects off the mirror and travels the distance of the aquarium twice. Hence, the total distance traveled by the light is the distance to the fish plus the distance from the fish to the mirror which is 35 cm - 10 cm = 25 cm. Thus, the apparent distance from the front wall of the aquarium to the image of the fish in the mirror is 10 cm (to the fish) + 25 cm (to the mirror) = 35 cm.
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