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AlekseyPX
3 years ago
6

When charges build up on a surface they:

Physics
2 answers:
uysha [10]3 years ago
7 0
I believe the correct answer from the choices listed above is the third option. When charges build up on a surface they, apply a force to charges wandering nearby and <span>create an electric field. </span>

Hope this answers the question. Have a nice day.
Natasha2012 [34]3 years ago
6 0

Answer: A and B

Explanation:

An electric field develops around a charge. The electric field lines represent the region in space where a positive test charge experiences an electric force. A electric force exists between  the two charges.

Thus, when charges build up on a surface, they apply force to charges wandering nearby and also create electric field. So, correct option is Both A and B.

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Please help Math Phys
Lorico [155]

Answer:

269 m

45 m/s

-58.6 m/s

Explanation:

Part 1

First, find the time it takes for the package to land.  Take the upward direction to be positive.

Given (in the y direction):

Δy = -175 m

v₀ = 0 m/s

a = -9.8 m/s²

Find: t

Δy = v₀ t + ½ at²

(-175 m) = (0 m/s) t + ½ (-9.8 m/s²) t²

t = 5.98 s

Next, find the horizontal distance traveled in that time:

Given (in the x direction):

v₀ = 45 m/s

a = 0 m/s²

t = 5.98 s

Find: Δx

Δx = v₀ t + ½ at²

Δx = (45 m/s) (5.98 s) + ½ (0 m/s²) (5.98 s)²

Δx = 269 m

Part 2

Given (in the x direction):

v₀ = 45 m/s

a = 0 m/s²

t = 5.98 s

Find: v

v = at + v₀

v = (0 m/s²) (5.98 s) + (45 m/s

v = 45 m/s

Part 3

Given (in the y direction):

Δy = -175 m

v₀ = 0 m/s

a = -9.8 m/s²

Find: v

v² = v₀² + 2aΔy

v² = (0 m/s)² + 2 (-9.8 m/s²) (-175 m)

v = -58.6 m/s

6 0
3 years ago
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