Answer:
Explanation:
Given that,
Mass of the amber bead, m = 12.6 g = 0.0126 kg
Charge on the bead,
The electric field due to infinite large plastic sheet is given by :
At equilibrium, q E = m g
where
is the charge per unit area on the glass sheet.
So, the charge per unit area on the glass sheet is (). Hence, this is the required solution.
1. Accelarating
2. Constant Speed
3. Decelerating
4. At Rest
5. Accelerating
Hope this helped!
According to my calculation the answer would be a
Answer:
It would take 1 s to hear the echo.
Explanation:
Here, the sound covered a total of 340 meters, since it bounces off the canyon wall and travels back to Miles in the form of echo.
The time elapsed can be determined by,
v =
⇒ t =
where: v is the speed of sound in air (343 m/s), D is the distance of the nearest canyon (170 m).
So that,
2D = 2 x 170 = 340 m
Thus,
t =
= 0.9913 s
t = 1 s
It takes 1s for Miles to hear his echo.