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stepladder [879]
3 years ago
13

Why do FM stations drop out at shorter distances from their source than AM:?

Physics
1 answer:
Mila [183]3 years ago
7 0

Answer:

FM radios use a shorter frequency while broadcasting

Explanation:

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7nadin3 [17]

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3 years ago
A spring is 20cm long is stretched to 25cm by a load of 50N. What will be its length when stretched by 100N. assuming that the e
IgorLugansk [536]

Answer:

Final Length = 30 cm

Explanation:

The relationship between the force applied on a string and its stretching length, within the elastic limit, is given by Hooke's Law:

F = kΔx

where,

F = Force applied

k = spring constant

Δx = change in length of spring

First, we find the spring constant of the spring. For this purpose, we have the following data:

F = 50 N

Δx = change in length = 25 cm  - 20 cm = 5 cm = 0.05 m

Therefore,

50 N = k(0.05 m)

k = 50 N/0.05 m

k = 1000 N/m

Now, we find the change in its length for F = 100 N:

100 N = (1000 N/m)Δx

Δx = (100 N)/(1000 N/m)

Δx = 0.1 m = 10 cm

but,

Δx = Final Length - Initial Length

10 cm = Final Length - 20 cm

Final Length = 10 cm + 20 cm

<u>Final Length = 30 cm</u>

6 0
3 years ago
When a light wave enters into a medium of different optical density,
olga nikolaevna [1]
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6 0
3 years ago
What is the physical quantity in which force is divide by area called​
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Explanation:

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5 0
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Heat moves from hot to cold either through air or liquid <br>​
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Answer:

both

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