Answer:
Volcanic lightning is created when a volcano erupts and lots of tiny fine particles of volcanic ash form a cloud. Friction between the particles of ash and the gases emitted from the eruption cause differentces that create lightning. Friction between the particles of ash and the gases emitted from the eruption cause differentces that create lightning. The lightning usually occurs between clouds and from the eruption column to the crater.
Explanation:
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Explanation:
The rod can be in equilibrium only if the resultant force is 0 and the moment around any point of the rod must be equal to 0.
We have to take moments around the pivoted point.
Moment = Force × Perpendicular distance to the force
For the rod to be in equilibrium,
Clockwise moment - Anticlockwise moment = 0
Clockwise moment = Anticlockwise moment
The distance between pivoted point and the weight of rod = 50 cm - 30 cm = 20 cm
So 20 cm× 1.2 N produces a Clockwise moment
If Perpendicular distance between pivoted point and 2N load is x,
Anticlockwise moment = x × 2N
20 cm× 1.2N = 2N × x
x = 12 cm
So 2 N load is at 12 from the pivoted point.
From the left edge of the meter ruler, 2N load is at 30-12 cm distance
= 18 cm
Answer:
Explanation:
The capacitance of a parallel-plate capacitor is given by
where is the vacuum permittivity, A is the surface area of the plates, d their separation.
We also know the following relationship
where Q is the charge stored on the capacitor and V the potential difference between the plates.
Combining the two equations,
We also know that for a uniform electric field (such as the one between the plates of a parallel-plate capacitor), we have
where E is the magnitude of the electric field. Substituting into the previous equation and re-arranging it,
For the capacitor in the problem:
is the area of the plates
is the maximum electric field before a spark is produced
Solving for Q, we find the maximum charge that can be added before that occurs:
1 to 3 S, for the bottom question, and 1 s for the top questions (guessing, sorry)
Answer:
This question is incomplete. The completed question is below
A student records the feather colors and beak shapes of every bird observation in a park. What kind of data is the student recording? A. Qualitative B. Quantitive C. Empirical D. Theoretical
The correct option is C
Explanation:
Empirical data is the data <u>recorded during the course of an experiment/research by means of observing</u> (it could be direct or indirect) certain properties/quality. From the question, it was described that the student observed and recorded <u>the feather colour and beak shapes</u> of birds that came to the park.