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irga5000 [103]
3 years ago
5

Suppose two equal charges of 0.65 C each are separated by a distance of 2.5 km in air. What is the magnitude of the force acting

between them, in newtons?
Physics
1 answer:
mafiozo [28]3 years ago
7 0

Answer:

Force between two equal charges will be 608.4 N

Explanation:

We have given charges q_1=0.65C\ and\ q_2=0.65C

Distance between the charges = 2.5 km = 2500 m

According to coulombs law force between two charges is given by

F=\frac{1}{4\pi \varepsilon _0}\frac{q_1q_2}{r^2}=\frac{Kq_1q_2}{r^2}, here K is constant which value is 9\times 10^9Nm^2/C^2

So force F=\frac{9\times 10^9\times 0.65\times 0.65}{2500^2}=608.4N

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A roller coaster track is 3000 meters long. It takes 100 seconds to travel once around the roller coaster. What is the average s
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Natasha_Volkova [10]

Answer:

421.83 m.

Explanation:

The following data were obtained from the question:

Height (h) = 396.9 m

Initial velocity (u) = 46.87 m/s

Horizontal distance (s) =...?

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This can be calculated by doing the following:

t = √(2h/g)

Acceleration due to gravity (g) = 9.8 m/s²

Height (h) = 396.9 m

Time (t) =.?

t = √(2h/g)

t = √(2 x 396.9 / 9.8)

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